I suppose the amount of time valve takes to get things right and the speed of kernel updates they just have to pick one and stick with it for a while then jump to the next one
ive found that launching sunshine from game mode via ssh seems to allow the stream to persist even between session-switching, but i'm not sure that also works on bazzite right now.
i have the service enabled now on nobara but i was doing a lot of settings tweaking and diagnosing the sunshine crash when switching from desktop to game mode