Ok, so I've tried Proxmox on a spare Lenovo L480 laptop that I had, which has an 8th generation Intel CPU, 8 GB RAM and a 250GB SSD drive. I originally thought to buy a mini PC, but this seems to work ...
That's it. Exit the file and save over the existing one, and you've got an immutable OS in that VM. When you boot it from now ...
If you’re fond of distro hopping or love working on different projects, you probably rely heavily on virtual machines.