Ehhhh

Professionally I've only ran into a handful of Ubuntu installs.

Dozens of SUSE

Hundreds of thousands of RHEL.

So if I wanted to help someone new, I wouldn't recommend Ubuntu because it would be somewhat of a dead end.

Fedora gives you familiarity with the largest deployed commercial Linux, while still getting the newest packages out there through either fedora yum or flatpak. Best of both worlds.