I found that even games with "Linux support" tended to work on some distros but not others.

I wonder if there's a guide to setting up Arch in a way that makes it work as much like the Deck as possible? I'm fairly indifferent to choice of distro, maybe it's worth choosing Arch just for game support.

Edit: I found this -- https://store.steampowered.com/steamos/buildyourown I guess they're using Debian rather than Arch