As much as I love Bazzite at end of the day it's still a custom distro and every single day there is a chance they just close the project down and move on. Happened to so many distros in the past, this is not out of question. I’m not saying “big corporate” distros are better but personally I'd rather stick to something more mainline. Hopefully Valve will release a general version of SteamOS with Steam Machine coming…
The nice thing about atomic distros is switching operating systems is as easy as typing 'ostree rebase', and registering a secure boot key. So if Bazzite did go that way you could have fedora running in under an hour and with flatpak most thing will just work.
One `rpm-ostree rebase` from Bazzite to a server-oriented flavour of Fedora Silverblue and it's been running and updating flawlessly since then.