I think basically all Linux distros will support lvm? It seems like some installers do not, but as long as you leave the disks alone during installation it should be fine. As for distro, Debian is a great choice for a server. I’ve had no issues over the years since I ditched Ubuntu since they keep moving towards commercialization. If you want to learn more compared to Ubuntu you might not learn much though. Fedora could offer more learning, though honestly it’s kind of all the same.