I ran WoW for years on Arch until I stopped playing a few years ago. IDK what the experience is like these days, but it was fine then.
Personally, since I don’t like the runaround to install things on Bazzite, I would use Nobara or just vanilla Fedora with your own drivers. You can use Btrfs Assistant to set up Snapper snapshots and boot entries if you want, but I’ve never seen a Fedora update fail in any critical way. Frankly, I’d be inclined to just go with vanilla Fedora since GloriousEggroll is a busy guy and updates aren’t very up to date on Nobara IME.
Wayland support in Mint is experimental, it’s not worth your time if you’re playing games. X11 is on maintenance-only life support these days.