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?
You can also install “app stores” on arch, if you so desire. I believe the most famous one is
pamac.You can configure the firewall with the KDE GUI, you don’t need additional knowledge than the one you’d already need for any other system.
I wouldn’t recommend Arch for newbies with no technical background but I feel like EndeavourOS is very simple to install and use.