At the moment I do exactly that. Learn proxmox, omv, influxDB and tomorrow grafana comes around to play 😉
Nevertheless proxmox and omv are the difficult ones if you never used a hypervisor before. And my toughest lesson was: software raid is pretty slow. This took quiet some time to realise that this was the problem.
But it is great to have a hypervisor to play around with, test different things in containers or vms and if you mess things up, just spin up another in a few seconds and try it again. It just feels less impactfull than reinstalling all stuff on one machine.
And you learn a lot about networks along the way if you aren’t already familliar with it.