I actually did the whole KDE shebang with archinstall. I never really expected that Arch btw deigned it too opinionated to just provide an audio and Bluetooth interface. Instead I have to choose between pulse audio and pipewire and bluez and a bunch of others. I just didn’t have the patience nor time to look into what and why these options are presented, and this was after I already wasted days figuring how to get my pc to boot with my 12th gen Intel and Nvidia gpu combination.
Turns out there’s a bunch of kernel finagling you absolutely have to do first before it even decides to boot from the gpu and not the igpu. Oh well.