My work uses slack. The screenshare doesn't work with Wayland. Steam link/remote play doesn't work with a Wayland host (at least it hasn't every time i have tried it). For my gaming pc i only switch to X when i want to use the steam link and use Wayland the other 99.99% of the time because in general it is better. For work i exclusively run X. I started with Wayland, but then there were several occasions where i had to logout then login again switching to X just so i could share my screen which was a massive pain. I love Wayland, but i can totally understand people not wanting to switch until the tools they are used to (or are required to use) work properly under Wayland.
Mine works okay on Debian 12 plasma. It was a little work to get it to not require root. The flat pack worked out of the box but then plugins became an issue so I went back and screwed with permissions till I got it working.