Important to note, Start9 doesn't have any networking problems per se, rather they went with a Tor-only approach, whereas many people prefer to expose their services over the clearnet. 
With the next version, as you mentioned, they'll be introducing clearnet configuration, for better or worse (I say this as many people don't know how to maintain clearnet infrastructure, but seems to work well for Umbrel so far).

Also shout out for Proxmox - Use it professionally and on all my self-hosted setups, can't go back to anything else.