@ReakDuck@MJBrune
SteamOS is a spin off Arch aimed very specifically at the steam deck and nothing else. The desktop is nice but incomplete; try setting up a fully working japanese input method for example; or a full, modern gcc compiler chain.
In some future they may make a distro release aimed at a wider range of hardware. But until then it's not a general purpose desktop OS and it's doing them a disservice trying to pretend it is.