Go baremetal
You want it to be as simple as possible, to be as secure as possible.
Adding proxmox - or any abstraction layer - is now adding more layers that have potential security issues.
And everyone is scanning your IP for vulnerabilities 24/7.
Plus, in my case, I want a completely separate network for Guest Wifi, IoT, etc and only some stuff hitting the LAN / homelab.
There's 2 different things here:
You need both or you're loosing freedom of speech.
If the government is “nice“, then you won't feel threatened by this and you'll believe that it's better because we can now find the “bad guys”.
But what if the rules change and your thoughts / feelings / beliefs are now “bad”... how do you band together to make it better?
And, the internet is already flooded by bots, well, at least 50%, but I'm guessing no-one's noticed.