Just wanted to share for the 10 people like me who has with an Nvidia + dual screen setup on ArchLinux (btw) with KDE Plasma desktop that since the new plasma 6 update I can finally use the Wayland session option!
The wayland should work has been around for the last 5 years and 5 years ago it was not even close, then 1 or 2 years ago it started not crashing but multi-screen was not OK (I tried all the kernel and driver parameters).
Now for me and my 5+ years-old setup (probably a lot of legacy plasma settings in my .config) it was finally seamless.
From previous tries I already knew that the desktop feels WAY smoother (true 60 fps everywhere, specially for the video players in web browser).
Feels great so far, discord screen-sharing is not there but can be done from Firefox if needed so OK for me.
I hope this post will be informative for some like me who tried several time over the years and didn’t had much hope.
PS : the cursor has a weirdly strong outline (too shiny to my taste) feels like unintended but not a big problem. I spent 30 mins in the options but couldn’t find anything about that.
The whole system completely froze when I tried to resize the application launcher (aka Start menu). I switched to tty and saw Plasma getting stopped. I could launch the second GUI session but ehh I just rebooted. Maybe it wasn’t exactly a Wayland issue but anyways I always have something not working well on it. I also had bad performance which was on Plasma 5 + Wayland too (on Xorg it was fine of course). On another machine I even got artifacts when using it lol. And btw Plasma 6 is really unstable, even on Xorg. Don’t use it in production