I haven’t explored KVM as an option. Yet, but I am going to be investigating that for my own use case now.
Outside of my laptop and desktop, I did run a Dell PowerEdge (forget the model, but I have a singular Xeon and 64gb of ram in it along with hardware based raid and 8 hdd bays.) that I ran Ubuntu on, but I realized Ubuntu wasn’t the way to go for me due a number of things. So I shut the server down and will be reinstalling another OS on, I haven’t decided yet but maybe Fedora for that. It was just being used to run Docker and Portainer, which I had a good chunk of docker containers running. I had a reverse proxy, Jellyfin, Gluetun, uptime kuma, signal messaging bot for uptime kuma to let me know if a services went down, photoprism, kanboard, a wiki, and a few other services.