So as I look to build my first dedicated media server, I’m curious about what OS options I have which will check all the boxes. I’m interested in Unraid, and if there’s a Linux distro that works especially well I’d be willing to check that out as well. I just want to make sure that whatever I pick, I can use qbittorrent, Proton, and get the Arr suite working
I use Alma because RHEL is designed for enterprise stability. Debian is also a good option.
Just don't use Ubuntu. They do too much invisible fuckery with the system that hinders use on a server. For basic desktop use it's fine, but never for a server.
Edit: but you should be doing most stuff in Docker anyway, so the actual OS isn't going to matter too much. If you're already comfortable with one base (Debian, RHEL) just use that one or a derivative.
I wouldn't use Mint or other desktop-focused OS for a server. Ubuntu's advantage of newer packages gets largely negated by how long Mint takes to release a new major release, so I'd rather use Debian.
I do think Ubuntu is fine for servers too, like almost any other point release distro.