+1 for a weird bazzite issue.
Im sorry I havent got advice - just a similar problem. If my TV is turned off for a period of time, when I turn it on bazzite no longer outputs anything. I have to sleep cycle the PC for it to work again
I have turned off all power management stuff related to the display (no dimming, sleep etc) and it still just dies eventually.
I changed my power switch to be sleep on press. Cycle that after the display is on, works after.