The only issues I had were due to fractional scaling (blurry apps, especially Electron based ones; and windows opening or moving to weird edges, where I can’t move them anymore).
But those were already a few months or a year ago, and since I switched from Gnome to KDE 6, I have zero issues, neither on my laptop (integrated on CPU), nor on my desktop with an AMD GPU.
And even over a year, almost two, ago, Wayland has been very smooth for me. I used Gnome for most of the time, which has always been very solid with Wayland. KDE has been a bit more janky in the past, but nowadays, Wayland feels way smoother and polished than X11 for me.
I had something similar when my drive started to fail.
At first, it was annoying, because the cursor froze all the time, just like yours, then programs started to do the same, then they started to crash without reason, and in the end, even my unbreakable OS (Fedora Atomic) broke randomy and incoherently.
What did I learn? Don’t cheap out on drives, and keep enough backups.