what is the reason you shy away from ubuntu? Canonical. Snaps. Ubuntu is the first server OS I used, and while it was quite good I think I prefer using a base distrobox instead of a derivative. If I’m going to use Debian, I’ll use Debian. Not Debian with corporate stuff on top.
As for SELinux: I’ve tried around a year ago. But as soon as I started doing stuff with users and tweaking docker permissions things went wrong and I just set it to permissive. Maybe I’ll try that again soon, because other parts of managing servers have become much easier over time as I learned. I agree that having a server without SELinux is quite dumb and not very professional.
My servers have names of Spanish words humorist El Risitas says in his mythical video where he laughs with no real reason.
The biggest server is named “cocinero”, because I can (jokingly) easily imagine a very fat cook.
Then there is plancha, a lenovo thinkcentre which has the size of a plank.
My raspberry pi’s have names of tapas: chorizo, keso etc.