Yeah, I wouldn't even bother with Wayland on Ubuntu unless it works out of the box.

I'm on an unholy amalgamation of Arch/Cachy/Endeavour now, but I have been using screen sharing nearly everyday on calls via Firefox on Arch for about a year and it's worked without a problem.

I considered Debian testing, and it does work well on servers, but a true rolling release is more convenient. The software release and update loop is shorter, it's really nice to be able to pull fixes to packages in a reasonable amount of time after they're released.

Debian testing (without security updates from unstable) is a no-go for servers as you are getting no timely security updates. https://wiki.debian.org/DebianTesting#Considerations