For gaming you want the latest updates. Of all the major distros, only Arch, Suse and Fedora provide that. Arch requires you to learn to about and fix breakage. Fedora has a gaming spin which works like a Steam Deck: Bazzite.
I’ve distro hopped between 10+ distros, and Bazzite has been the only one that gave me a rock solid stability and latest drivers simultaneously. It’s not purely immutable, Fedora calls it Atomic.
I suggest you try it, and tell me if there was anything you couldn’t do.
Also: I don’t support Canonical’s walled garden
https://docs.spacebar.chat/faq/
Damn.