If you don't mind me asking...are you using nVidia by chance? Have you tried something besides KDE? How long ago was this?

I've read about some terrible experiences with Wayland and I've just never had any of these problems in nearly a decade of using it almost every day (sway was a little rough around the edges in the first year it came out, but even then it fixed screen tearing, which I was never able to entirely eliminate with Xorg). The two things I've always stayed away from though is KDE, and nVidia.

I'm just trying to figure out why there's such a discrepancy between my experiences and what I read online from time to time.