Just got a steam deck and immediately checked out the desktop mode, and I was somewhat surprised to see KDE and pacman as opposed to GNOME and apt, I have nothing against the former though a strong preference for the latter, anyone know why Volvo went in this direction?
I suspect KDE because most PC gamers are Windows users and KDE is closer to that while Gnome is closer to macOS (both in design and being restrictive).
I believe SteamOS is also immutable and uses a rolling release model. It’s probably logical to make a custom version of Arch. They can make it immutable and still get the latest packages. Fedora Silverblue (or another immutable Linux distro) wouldn’t be as quick to release packages and was probably in alpha when the decision was made.