I’m very happy with proxmox. It was easy to learn, the community is great, and at it’s plain Debian under the hood.
If I ever rebuild it, I might consider a single VM for all of my docker services. As it stands, I have 5 or 6 VMs running one docker container each. Being new to docker, I wanted as much isolation as I could get in case I borked something. I understand it well enough now that I’d use portainer or something.
My next idea is an LXC running a desktop. I have a 3060 for transcoding and I can share that to as many lxcs as I want. There are security implications with lxc, but again there is lots of material on how to do it. If you have a GPU you can pass through whole hog, it’s maybe better or easier to do a VM instead.