I would go with two (or more) proxmox nodes working as one. And then running even more VMs on them as kubernetes nodes. Proxmox handles lots of stuff for yout that is harder to handle in phusical machine.

Do not run kubernetes nodes as LXC. I mean you can for testing etc… BUt you will have to break sandboxing because of networking capabilities kubernetes requires. At least that was the case for K3S. You could probably have better experience with Kind.

That is really nice to hear! I share your feelings ❤️❤️❤️

Also ctrl-shift+R or ctrl+F5 on some browsers.

By cleaning all the real vacuum away the ony thing that is left is false vacuum.