I've been running Plasma Desktop for years and had to put up with graphical glitches in its X11 iteration. I switched to Wayland to years ago when Plasma 6 was released and all the glitches were gone. Additionally, overall snappiness and responsiveness of the desktop and window management improved markedly, I felt like a got a new computer. Granted, I had to acquire an AMD GPU for this transition but it was well worth it.