In the old Apache server I had these modules active and I wonder if I should also activate them in Virtualmin. Especially proxy_http2 instead of proxy_http.
socache_shmcb, include, cgid, proxy_http2, sysenv, userdir, proxy_wstunnel
Furthermore, mod_sysenv is not even listed and needs to be installed.
Up to you really if anything you use needs these modules obviously activate/install them. I see little point activating/installing modules you are never going to use just so it matches a previous setup
The Virtualmin installer activates what it needs for all of the configuration it will do in a default install (there are some other Virtualmin plugins that work with non-default modules, but you probably don’t want them at this point in history…old creaky stuff like mod_perl and mod_svn). Anything else is your business, not ours.
I would encourage you to read up on what a module does before enabling it (same goes for packages when installing, services when enabling them, configuration options when changing them, etc.).