I'm running Wayland with Nvidia and not many problems. Can play games just fine, I just have Plasma hanging in weird ways sometimes, and Firefox is completely broken (Floorp works fine, tho, and it's the same thing)
yeah report this as an issue i guess. if you're on a fresh installation of bazzite and both X11 and Wayland sessions are black screens then report it on the github issue tracker and/or in #bazzite-help
To be fair, it makes sense for them to provide support only for a couple OS, including the one they have control of. One of the biggest gripes companies have of supporting Linux is the need to support a bazillion distros each with their weird stuff happening in the background