Wayland isn't a piece of software. It's a protocol. Compositors that implement it are Gnome's Mutter, KWin, wlroots, hyprland's compositor, and others. COSMIC implements their own compositor too and that's probably where the problem lies...

I use Gnome, and Wayland sessions have been flawless for years. Screen sharing works, everything works.

Also, I've seen colleagues struggle to get screen sharing working on both Windows and Mac; most OSes now don't just allow any program to read from any window, so if someone forgets to allow a permission somewhere, no screen sharing.

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_arti...