i recently had a look at Proxmox and found it very underwhelming. it might be interesting of you want to set up and run a cluster of hosts conveniently. other than that it’s just a web ui, and given that this is a key component of the product in its ninth incarnation, it’s disappointing; cluttered, bloated with redundancy, unintuitive. its concept of deploying containers is a joke.
i’d also be careful with products that seem to have religious followers.