It’s just the most familiar distro with a ton of guides to get you off the ground, and once it’s up and running there’s really no reason to keep messing with works.

I’ve got most of my stuff in docker now so my needs aren’t OS dependent (ran off of Unraid which itself is running on Slackware), but when I set up different dedicated Linux servers, Debian is my go-to. Ubuntu got too far up its own ass with features nobody asked for that it’s been far better to go back to basics for me.