Pretty exciting times ahead as Valve might finally release SteamOS to more hardware. This amount of Linux desktop coverage would be unimaginable few years ago.
Bazzite basically is steam OS for the most part. You get generally the same experience. The only reason there is a Bazzite at all is because steam OS itself has t come to any other handhelds besides the steam deck.
They’re likely to get the same kind of benchmarks from games using steam OS or Bazzite on the same hardware.