I have been running Bazzite on my TV for a few weeks. Was using PopOs however I was having issues with some games not launching, probably to do with the combination of Unraid VM, GPU passthrough, Xorg with fractional scaling on a 4k pannel. Bazzite with “Game mode” is amazing. Closest thing to Steam OS that I know about. Everything just worked with the exception of needing to firmware update my xbox controller to get it to work. Game mode seems to report as a steam deck.
Meanwhile all PS controllers (at least until 4), work OOTB on Linux, even with BT lol
The controller for the 5 works with all features too, they all work due to the official Sony controller kernel modul in the kernel.