Valve has almost single-handedly taken Linux gaming from the fringes into widespread availability. It's super easy to get most Steam games running in Linux now. It's almost a shame that Arch is getting the help and not Debian. Arch is one of the more time-consuming distros to install and derivatives like Manjaro, ChimeraOS, and Bazzite are not nearly as polished as Debian derivatives like Ubuntu, Linux Mint, and PopOS.
It does make sense though. Arch's rolling release strategy leaves it with early support for the latest hardware and games, and Valve has provided an easy installer and smoothed out the rough edges in SteamOS.