I agree that I use Ubuntu on server because I use it on the desktop, that makes sense.
However, when I installed Ubuntu Server 18.04 recently it was delightful. There was this simple feature they added which automatically pulled down my ssh key from my GitHub account. During the install it asked me to enable the semi-recent kernel livepatching (and old fashioned unattended-upgrades) it even suggested plexmediaserver as a snap package - which was my goal.
Of course installing actual servers is a bit archaic in the age of docker, but it made me feel like I made the right choice of OS.