Personally speaking, my problem with Wayland is much more mundane: the mouse pointer lags ever so slightly (compared with X11), and it turns out that's a psychosomatic trigger for me. It causes actual tightness in the chest (that one could just be frustration) but also a weird stinging-ish pain in the upper arms and neck (real wtf, very hard to describe, and probably some neurospicy thing).

I'm not sure if I misconfigured something 10 years ago and it's stuck somewhere in my home directory, or what... I can't believe nobody else is bothered by this, even if maybe not as much as I.

(ed.: I should blind test myself, but unfortunately the sessions do differ slightly, i.e. I can recognise when I'm on Wayland :/ )

(ed.2: just got new external displays, they support 120Hz, maybe that helps...)