I think your experience is more to do with nvidia + Wayland than anything OS specific. Although I think other distros have done a lot of patching and coding around nvidia’s incompetence to get Wayland to work better and I think Arch doesn’t really do this sort of thing. Definitely seems like you unwittingly took on a project.

I also use nvidia but I have no desire to move to Wayland any time soon. X11 works just fine unless you get into esoteric setups like multiple monitors with different refresh rates. My first boot into KDE with Arch was completely broken and I thought “okay, here comes the hard part” until I realized it was defaulting to Wayland. Changed it to X11 in sddm and it’s perfect. I use my ForceCompositionPipeline script on login and set kwin to force lowest latency and it’s smooth as butter.

Wayland is the future but nvidia is definitely gatekeeping that future. I’ve got a 3080 in this machine that is going to last a pretty long time I suspect, but unless nvidia can manage to remove head from ass I see AMD in my future.