Ubuntu for my servers, and Linux Mint for my Workstation.
I grew up using Debian-based distros, so it’s what I’m comfortable with. I like how Mint seems to “just work” most of the time, especially with samba shares and usb peripherals.
Ubuntu server is primarily because it’s incredibly easy to get support when you need it.
Audiobookshelf, Calibre-Web, Plex/Jellyfin, FreshRSS, NextCloud, DokuWiki.