Just installed KDE Plasma on my Ubuntu system to replace GNOME and Wayland. Mainly to get rid of an issue where my games would lose mouse lock, but now I can have two different wallpapers on both monitors and have a clock on my second monitor which is AWESOME.
I WISH I INSTALLED IT SOONER, I LOVE IT.
What kind of graphics card do you have? This smells like an Nvidia issue. I haven’t had any Wayland issues since I switched to AMD