Earlier quoted context omitted.
I find that Fedora hits the right balance of stability while being up to date for anything desktop and specifically gaming focused, Debian has different priorities and packages can be a bit too old. And it’s less of a faff than Arch.
Archlinux can be a pretty good choice for gaming. Not necessarily because of anything Archlinux does: most distros can do anything, if you configure them. No, just because the Steamdeck's distro is built on Arch, and so you can piggyback on what they are doing.
I don't see why 'piggyback on what [Steam deck is] doing' wouldn't work just as well on any distro, you'd just have a load of extra stuff you're not using too.
That's nothing against Arch, it's what I use, I'm just saying really the only magic is in doing less.