Is this the one using the open source kernel module?
Only relevant if you have a 2000-series card or newer. Pascal and older cannot use it
yes
Highlights from R560 Beta Release, 560.28.03
Updated nvidia-installer to select the NVIDIA open GPU kernel modules by default on systems with GPUs that support both the proprietary and open kernel modules.
In Bazzite, you should just need to open the Discover package manager and click "Refresh" and then "Update All" in the top right. Although these drivers don't appear to be available through the package manager yet; mine is still on version 560.31.02.
Is this the one using the open source kernel module?
Only relevant if you have a 2000-series card or newer. Pascal and older cannot use it
yes
Highlights from R560 Beta Release, 560.28.03