What i can only imagine is some sort of video player error
My guess is, your system is missing a video codec, probably a gstreamer plugin like libav (I don’t know what its called on Bazzite, something like gst-plugin-libav or gst-libav ...).
If you would start the game from console or find the steam log file you should see a error message. (I’m not at home now and rarely use steam, so I can’t look it up now).
Aww, everyone here is full of shit