Yeeees, GTK looks awesome but I just cant see how apps like Plasma systemsessings, qBittorrent etc using Qt could work like that.
Gimp 3 alpha is pretty crazy, as GTK2 was very nice and usable, but already with GTK3 everything got huge, so now the buttons dont fit as well anymore.
Also I have to say GNOME would have some big issues for me.
I dont want a top panel on a laptop, as it makes me look down more
docks are weird as they waste screen space. Why not use a normal panel, everything there, at the bottom or side?
not seeing all my open apps is weird, also not being able to open or close from the panel is weird
I and I guess 99% of Desktop users dont need virtual Desktops. As they dont change the panel and more, I dont even use Workspaces on Plasma
thus, normal window decorations are necessary
hitboxes need to be in the upper corner and not some padded thing in the center. Every decoration failing this (looking at you Firefox & Thunderbird) just sucks
UIs need to be compact when needed. Not everyone is a child and settings are not that simple.
Gnome has some nice apps like Loupe that are actually more secure. And it probably is way more stable. But KDE apps are so great, at least for usability! Could not live without Dolphin for example