GTK Development Blog – All things GTK
First Look at Some of the GTK4 Apps in GNOME 42 - 9to5Linux
GTK4 - This Week in GTK+
Build and run GTK 4 applications with Visual Studio
Builder GTK 4 Porting, Part I – Happenings in GNOME
Is there any future for the GTK-based Desktop Environments? – Homo Ludditus
GTK3.24 -> GTK4.1 Theme migrating hints - Products - Community Boards
GTK-4 Themed Apps Not Working - General Help - Zorin Forum
Rnote' is a Freehand Note-Taking Tool Built in Rust & GTK4 - OMG! Ubuntu
GTK 4 Apps Developed from GTK 3 App Source – Gautier Talks About Technology
GNOME has brought several apps to GTK4 and libadwaita in the last week
File:Gtk4-widget-factory demos.png - Wikipedia
c - Create a menubar for GTK 2.24 and GTK 3 and GTK 4 - Stack Overflow