I'm on KDE right now (KDE Neon). Basic stuff like, installing Chrome still uses the GTK file picker, is an issue. Loading screen goes to wrong monitor and oriented wrong. Plugging in monitor sometimes makes both go black requiring hard reboot (I think I fixed this with a kernel flag...). Just overall polish. Although I do like Neon as a distro so far.

All of that works here on Tumbleweed...

Chrome is actually one of the browsers that had KDE file picker integration early on. Initially it called kdialog, now it uses xdg-desktop-portal.

Yeah I think it might be a system wide config issue causing Chrome to use the wrong picker.

But anyway I should really give an RPM based distro a go at some point.