It’s not that deep lol. They just want to avoid writing extra code to make their apps and toolkit compatible with the wider linux desktop. Being the closest to an “official” desktop environment and having paid volunteers, they have a certain responsibility to make their things desktop agnostic. But they act entitled and really just want to minimize their work. Gtk 3 and below were close to perfect. Gtk 4 and libadwaita are the embodiment of everything wrong with gnome.
They just have to bring AI into everything huh