I don't really use the HA features of proxmox that often, mostly just for migrating vms across hosts. But I had been thinking of re-installing some of my remote servers with proxmox and hooking them up to the same cluster so that I could potentially shut off all of the servers in my basement and run everything from a remote location, then migrate the vms back later.
There's also the issue of quorum of it's only a 2-node cluster, though I've personally not had any issues with it, despite repeatedly restarting the different nodes.
I see no reason why you couldn't do this to allow you to move your VMs from home to elsewhere and back again as you just mentioned.
I thought quorum feature of proxmox was also latency sensitive, but this is the only thing I found:
https://pve.proxmox.com/wiki/Cluster_Manager#pvecm_cluster_n...
Maybe this doesn't matter if not using HA? I'll read more about it and maybe test it out
Just my experience though, YMMV.