diff --git a/doc/config/qtdoc.qdocconf b/doc/config/qtdoc.qdocconf
index a577da891..44bc8bf5a 100644
--- a/doc/config/qtdoc.qdocconf
+++ b/doc/config/qtdoc.qdocconf
@@ -100,5 +100,7 @@ manifestmeta.examplecategories = "Application Examples" \
 # Include 'Qt for Education' pages
 include(../edu/config/qtforeducation.qdocconf)
 
-# Enforce zero documentation warnings
-warninglimit = 0
+# doc/src/overviews.qdoc:
+#   (qdoc) warning: '\generatelist explanations-webtechnologies' no such group
+#   (qdoc) warning: '\generatelist explanations-positioning' no such group
+warninglimit = 2
diff --git a/doc/src/connectivity.qdoc b/doc/src/connectivity.qdoc
index dee38f22a..a58d01614 100644
--- a/doc/src/connectivity.qdoc
+++ b/doc/src/connectivity.qdoc
@@ -5,7 +5,7 @@
 \page topics-network-connectivity.html
 \title Networking and Connectivity
 \brief Qt's network and connectivity features.
-\ingroup explanation
+\ingroup explanations-networkingandconnectivity
 
 Qt provides classes for both high-level and low-level network communication,
 classes for web integration, and classes for inter-process communication (IPC).
diff --git a/doc/src/core.qdoc b/doc/src/core.qdoc
index 72faa58ca..e167102f8 100644
--- a/doc/src/core.qdoc
+++ b/doc/src/core.qdoc
@@ -5,7 +5,7 @@
 \page topics-core.html
 \title Core Internals
 \brief Qt's core topics
-\ingroup explanation
+\ingroup explanations-basics
 
 Qt contains a rich set of fundamental enablers, mainly from the \l{Qt Core}
 module. Qt uses these enablers to provide higher-level UI and application
diff --git a/doc/src/datainputoutput.qdoc b/doc/src/datainputoutput.qdoc
index 97cb49513..36b001d64 100644
--- a/doc/src/datainputoutput.qdoc
+++ b/doc/src/datainputoutput.qdoc
@@ -5,7 +5,7 @@
 \page topics-data-io.html
 \title Data Input Output
 \brief Qt's data input output
-\ingroup explanation
+\ingroup explanations-dataprocessingandio
 
 This page provides an overview of various ways of retrieving and saving data using Qt.
 
diff --git a/doc/src/developmenttools.qdoc b/doc/src/developmenttools.qdoc
index c0203f91e..43af3ca78 100644
--- a/doc/src/developmenttools.qdoc
+++ b/doc/src/developmenttools.qdoc
@@ -5,7 +5,7 @@
 \page topics-app-development.html
 \title Development Tools
     \brief Qt tools for application development.
-    \ingroup explanation
+    \ingroup explanations-tools
 
     Qt is designed for developing applications and user interfaces once and
     deploying them across several desktop and mobile operating systems.
diff --git a/doc/src/frameworks-technologies/accessible.qdoc b/doc/src/frameworks-technologies/accessible.qdoc
index 28cc0196a..acb7dd20f 100644
--- a/doc/src/frameworks-technologies/accessible.qdoc
+++ b/doc/src/frameworks-technologies/accessible.qdoc
@@ -11,11 +11,10 @@
     \page accessible.html
     \title Accessibility
     \brief How to make your applications accessible to those with disabilities.
+    \ingroup explanations-accessibility
 
     \nextpage Accessibility for QWidget Applications
 
-    \ingroup best-practices
-
     \tableofcontents
 
     \section1 Introduction
diff --git a/doc/src/frameworks-technologies/desktop-integration.qdoc b/doc/src/frameworks-technologies/desktop-integration.qdoc
index 1a9951fbe..88bec410a 100644
--- a/doc/src/frameworks-technologies/desktop-integration.qdoc
+++ b/doc/src/frameworks-technologies/desktop-integration.qdoc
@@ -8,6 +8,7 @@
 
     \ingroup best-practices
     \ingroup qt-gui-concepts
+    \ingroup explanations-platforms
 
     Qt applications behave well in the user's desktop environment, but certain
     integrations require additional, and sometimes platform specific, techniques.
diff --git a/doc/src/graphics.qdoc b/doc/src/graphics.qdoc
index f5428fa72..5f0d13a65 100644
--- a/doc/src/graphics.qdoc
+++ b/doc/src/graphics.qdoc
@@ -6,7 +6,7 @@
 \title Graphics
 \keyword topics-graphics
 \brief Qt's graphics features
-\ingroup explanation
+\ingroup explanations-graphicsandmultimedia
 
 Cross-platform applications can use Qt to display graphical elements. Qt
 abstracts the platforms' underlying graphics APIs so that developers can focus
diff --git a/doc/src/howtos/exceptionsafety.qdoc b/doc/src/howtos/exceptionsafety.qdoc
index a2e660643..2585da11b 100644
--- a/doc/src/howtos/exceptionsafety.qdoc
+++ b/doc/src/howtos/exceptionsafety.qdoc
@@ -5,6 +5,7 @@
     \page exceptionsafety.html
     \title Exception Safety
     \ingroup best-practices
+    \ingroup explanations-basics
     \brief A guide to exception safety in Qt.
 
     \b {Preliminary warning}: Exception safety is not feature complete!
diff --git a/doc/src/howtos/scalabilityintro.qdoc b/doc/src/howtos/scalabilityintro.qdoc
index 537d6237e..4a427a6ce 100644
--- a/doc/src/howtos/scalabilityintro.qdoc
+++ b/doc/src/howtos/scalabilityintro.qdoc
@@ -6,8 +6,7 @@
     \page scalability.html
     \brief How to develop applications that scale well on devices with different
     screen configurations and UI conventions.
-
-    \ingroup best-practices
+    \ingroup explanations-accessibility
 
     When you develop applications for several different mobile device platforms,
     you face the following challenges:
diff --git a/doc/src/howtos/unix-signal-handlers.qdoc b/doc/src/howtos/unix-signal-handlers.qdoc
index 31dc36611..45331a23a 100644
--- a/doc/src/howtos/unix-signal-handlers.qdoc
+++ b/doc/src/howtos/unix-signal-handlers.qdoc
@@ -7,6 +7,7 @@
     \brief You can't. But don't despair, there is a way...
 
     \ingroup best-practices
+    \ingroup explanations-platforms
 
     You \e can't call Qt functions from Unix signal handlers. The
     standard POSIX rule applies: You can only call async-signal-safe
diff --git a/doc/src/internationalization/i18n.qdoc b/doc/src/internationalization/i18n.qdoc
index 1b0e625c8..ede019c1e 100644
--- a/doc/src/internationalization/i18n.qdoc
+++ b/doc/src/internationalization/i18n.qdoc
@@ -7,7 +7,7 @@
     \brief Qt's support for internationalization and multiple languages.
     \nextpage Writing Source Code for Translation
 
-    \ingroup explanation
+    \ingroup explanations-accessibility
     \keyword internationalization
     \keyword i18n
 
diff --git a/doc/src/mobile.qdoc b/doc/src/mobile.qdoc
index 8bc37ee3c..663e4d89b 100644
--- a/doc/src/mobile.qdoc
+++ b/doc/src/mobile.qdoc
@@ -5,7 +5,7 @@
     \page mobiledevelopment.html
     \title Mobile Development
     \brief Development for mobile devices.
-    \ingroup explanation
+    \ingroup explanations-platforms
 
     Qt supports development and deployment of mobile applications.
 
diff --git a/doc/src/overviews.qdoc b/doc/src/overviews.qdoc
index 4fb30ea6b..5b3494bf3 100644
--- a/doc/src/overviews.qdoc
+++ b/doc/src/overviews.qdoc
@@ -7,7 +7,92 @@
     \title All Overviews
 
     \section1 Overviews
-    \generatelist explanation
+    \l {Introduction to Qt}
+
+    \section1 Programming Languages
+    You can develop Qt applications using one or a combination of the following languages:
+
+    \l {Qt Languages}
+    \list
+        \li C++
+        \li QML
+        \li Python
+        \li JavaScript
+    \endlist
+
+    \section2 QML and C++
+
+    \generatelist explanations-programminglanguages
+
+    \section1 Platforms
+    Develop Qt applications on macOS, Linux, and Windows desktop platforms.
+    Qt is platform-independent, which means you can compile same code base for other
+    target platforms.
+    \generatelist explanations-platforms
+
+    \section1 Basics
+    Learn the Qt basics that define the foundation of Qt.
+
+    \generatelist explanations-basics
+
+    \section1 UI
+    Use the Qt Quick and Qt Widget UI technology. Qt Quick interfaces are fluid,
+    dynamic, and are best on touch interfaces.
+    Qt Widgets are for creating complex desktop applications. You can create Qt Quick
+    and Qt Widgets interfaces with the target platform's native look and feel.
+
+    \generatelist explanations-ui
+
+    \section1 Graphics and Multimedia
+    Display graphical elements and handle multimedia content.
+    Qt abstracts the target platforms' underlying graphics APIs so that you can
+    focus on writing the application code.
+    Play back audio and video files and render them on screen, as well as
+    record audio and video from the system's cameras and microphones.
+
+    \generatelist explanations-graphicsandmultimedia
+
+    \section1 Data processing and I/O
+    Retrieve and store data in different formats.
+
+    \generatelist explanations-dataprocessingandio
+
+    \section1 Networking and Connectivity
+    Develop applications that communicate with Web services and exchange data (JSON or CBOR)
+    with applications on other devices.
+
+    In addition, Qt applications can use remote objects or gRPC and protobuf to
+    communicate with service endpoints.
+
+    \generatelist explanations-networkingandconnectivity
+
+    \section1 Web Technologies
+    Embed content from the World Wide Web into your Qt applications on platforms
+    that do not have a native web engine.
+
+    Alternatively, you can create a web channel for peer-to-peer communication
+    between a server and a client.
+
+    \generatelist explanations-webtechnologies
+
+    \section1 Tools
+    Qt installations contain Qt libraries, examples, documentation, and the necessary
+    development tools, such as the Qt Creator integrated development environment (IDE)
+    and Qt Design Studio for developing Qt Quick Applications.
+
+    \generatelist explanations-tools
+
+    \section1 Accessibility
+    Write accessible software by letting users scale the UI, change font size and
+    color contrast, use the keyboard for navigation, have UI text read aloud with
+    a synthesized voice, and change the UI language.
+
+    \generatelist explanations-accessibility
+
+    \section1 Positioning
+
+    \generatelist explanations-positioning
+
 
 */
 
diff --git a/doc/src/platformintegration/platformintegration.qdoc b/doc/src/platformintegration/platformintegration.qdoc
index 5db410c9d..86cd50391 100644
--- a/doc/src/platformintegration/platformintegration.qdoc
+++ b/doc/src/platformintegration/platformintegration.qdoc
@@ -5,7 +5,7 @@
     \page platform-integration.html
     \title Platform Integration
     \brief Integrating Qt with the native platform.
-    \ingroup explanation
+    \ingroup explanations-platforms
 
     Qt's main strength as a cross-platform toolkit for application development
     is removing the need for duplicating the application code for each target
diff --git a/doc/src/platforms/android/android-how-it-works.qdoc b/doc/src/platforms/android/android-how-it-works.qdoc
index b08c26cca..d8d1ece00 100644
--- a/doc/src/platforms/android/android-how-it-works.qdoc
+++ b/doc/src/platforms/android/android-how-it-works.qdoc
@@ -6,7 +6,7 @@
 \title Qt for Android: How It Works
 \brief An overview of architecture, toolchain, and other useful information.
 \ingroup androidplatform
-\ingroup explanation
+\ingroup explanations-platforms
 
 
 If you're a developer looking for a high level overview of how Qt supports the
diff --git a/doc/src/platforms/configure-linux-device.qdoc b/doc/src/platforms/configure-linux-device.qdoc
index 16f9e969e..f511c55d1 100644
--- a/doc/src/platforms/configure-linux-device.qdoc
+++ b/doc/src/platforms/configure-linux-device.qdoc
@@ -5,7 +5,7 @@
     \page configure-linux-device.html
     \title Configure an Embedded Linux Device
     \brief Provides information about how to configure an Embedded Linux device in Qt.
-    \ingroup explanation
+    \ingroup explanations-platforms
 
     Cross-compiling Qt for a given device requires a \b toolchain and a \b sysroot. The
     toolchain is expected to contain a version of gcc, or another compiler, and associated
diff --git a/doc/src/qmlapp/applicationdevelopers.qdoc b/doc/src/qmlapp/applicationdevelopers.qdoc
index 1817c7d6d..ef5415ef0 100644
--- a/doc/src/qmlapp/applicationdevelopers.qdoc
+++ b/doc/src/qmlapp/applicationdevelopers.qdoc
@@ -5,7 +5,7 @@
 \page qmlapplications.html
 \title QML Applications
 \brief Essential documentation for QML application developers
-\ingroup explanation
+\ingroup explanations-programminglanguages
 
 QML is a declarative language that allows user interfaces to be described in
 terms of their visual components and how they interact and relate with one
diff --git a/doc/src/qmlapp/usecases/layouts.qdoc b/doc/src/qmlapp/usecases/layouts.qdoc
index b53fa43e0..fb5d95913 100644
--- a/doc/src/qmlapp/usecases/layouts.qdoc
+++ b/doc/src/qmlapp/usecases/layouts.qdoc
@@ -4,7 +4,7 @@
 \page qtquick-usecase-layouts.html
 \title Use Case - Positioners and Layouts In QML
 \brief Example of how to create layouts for visual components in a QML application
-\ingroup explanation
+\ingroup explanations-programminglanguages
 
 There are several ways to position items in QML.
 
diff --git a/doc/src/testing.qdoc b/doc/src/testing.qdoc
index 8de4edace..aac2348f0 100644
--- a/doc/src/testing.qdoc
+++ b/doc/src/testing.qdoc
@@ -5,6 +5,7 @@
 \page testing-and-debugging.html
 \title Testing and Debugging
 \brief Writing unit tests and debugging with Qt
+\ingroup explanations-platforms
 
 Qt provides various functionality to help you develop high quality code. There
 are features that assist in debugging to track down bugs, and testing facilities
diff --git a/doc/src/userinterfaces.qdoc b/doc/src/userinterfaces.qdoc
index 19bf90767..36a34ddf6 100644
--- a/doc/src/userinterfaces.qdoc
+++ b/doc/src/userinterfaces.qdoc
@@ -5,7 +5,7 @@
 \page topics-ui.html
 \title User Interfaces
 \brief Qt's technologies for Creating User Interfaces
-\ingroup explanation
+\ingroup explanations-ui
 
 The Qt framework's main user interface technologies are \b{Qt Quick}
 and \b{Qt Widgets}. Qt Quick interfaces are fluid, dynamic, and are best
diff --git a/doc/src/wayland-and-qt.qdoc b/doc/src/wayland-and-qt.qdoc
index becbdaac5..8be5ba33b 100644
--- a/doc/src/wayland-and-qt.qdoc
+++ b/doc/src/wayland-and-qt.qdoc
@@ -5,7 +5,7 @@
   \page wayland-and-qt.html
   \title Wayland and Qt
   \brief An overview of the Wayland protocol and how it fits into Qt.
-  \ingroup explanation
+  \ingroup explanations-platforms
 
   Wayland was developed as an alternative to X11 on Linux. Its main purpose is to manage how
   the content of applications is displayed together on a shared screen, and how a user can
diff --git a/doc/src/xml-overview.qdoc b/doc/src/xml-overview.qdoc
index 3ff131de1..a685f62fb 100644
--- a/doc/src/xml-overview.qdoc
+++ b/doc/src/xml-overview.qdoc
@@ -5,7 +5,7 @@
     \page xml-processing.html
     \title XML Processing
     \brief An Overview of the XML processing facilities in Qt.
-    \ingroup explanation
+    \ingroup explanations-dataprocessingandio
 
     Qt provides two sets of APIs to read and write well-formed XML: \l{XML Streaming}{stream based} and
     \l{Working with the DOM Tree}{DOM based}.