I installed bazzite today and had this happen twice.
The first time I was playing a game for about 5-10 minutes and suddenly had a black screen, no sound either but the pc was still powered on.
The second time I just booted up a game, went to the settings screen clicked on something and the same thing happened, playing the same game after rebooting and it's fine (for now).
Just wondering if there's anything that can be done to prevent these random crashes, I looked in the logs and there wasn't really anything in there apart from telling me some usb devices were connected / disconnected