Ubuntu LTS 22.04 (MariaDB vs MySQL)

Well you could have replied to the question in this topic instead.

It’s confusing because:

It doesn’t report to me “Virtualmin virtual-server module version 7.1”.

Anyway if I understand you correctly - once the stable release of the version 7 installer is released I can us it running --setup to upgrade?

You can install MariaDB fine as it is. From everything I’ve read it’s not uBuntu that’s buggy it’s the RHEL-like distros holding up the v7 release.