My Debian Hypervisor do have a DE (GNOME) to be able to easily access virtual machines with virt-manager
Well I guess that depends on your level of proficiency with the cli. I personally don’t want a DE running ever, in fact my system doesn’t even have a GPU nor a CPU that can do graphics.
With that said, do you know about Cockpit? It provides you with a very light WebUI for any server and has a virtual machine manager as well.
I don’t mind helping my friends install their openvpn client and certificate and it’s nice to not have my services bombarded with failed connection attempts.
Yes I know the feeling ahahah. Now you should consider Wireguard, it’s way easier and lighter. Check out the links I provided, there’s a nice WebUI to provision clients there.