Having an environment like proxmox is very handy for learning and testing. When you find something to test, spin up a clean machine and you have a safe environment to learn that can be removed after. You can also try out different distros that way.

I’d recommend setting up Incus instead however, it works fine on a desktop/laptop if you’re running a linux distro they support and don’t have a dedicated machine to use.

They also have a very good tutorial/demo that shows the basics: linuxcontainers.org/incus/try-it/