I went with CachyOS. It's based off of Arch and compiles packages with flags for more modern CPUs. They also build extra packages that aren't normally provided by Arch (always nice to rely a little less on the AUR). And their default scheduler is supposed to provide a smoother gaming experience, though they have a selection of schedulers if you don't like that one.

I tried it but couldn't get it stable on my system. Ended up with EndeavorOS which is arch-based with a much better-install process.

I never tried Bazzite, but have been using Jovian, which is a NixOS-based gaming setup.

I have heard that CachyOS (Arch) and Nobara (Fedora) are two other decent options.