I've got similar hardware here - and just pulled down all my updates on the Fedora33 KDE spin. So far, both GTK and QT windows/UI are behaving fine for me... S

I've got similar hardware here - and just pulled down all my updates on the Fedora33 KDE spin. So far, both GTK and QT windows/UI are behaving fine for me... Some some relevant hardware/kernel info I yanked out of glxinfo. I've not looked for any bugreports, but I'm happy to follow one if I might be useful. AMD Radeon RX 5700 XT (NAVI10, DRM 3.40.0, 5.11.16-200.fc33.x86_64, LLVM 11.0.0) OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.3.5 Monitors: 2 0: +*DisplayPort-0 1920/598x1080/336+0+420 DisplayPort-0 1: +DisplayPort-1 1080/598x1920/336+1920+0 DisplayPort-1