ProxMox only runs LXC containers but not VPS?

Question

Virtualization

I decided to treat my local laptop with proxmox. I installed VirualBox on
the laptop, created (from a template) VM ubunts 20 in it but in container mode.
), okay, not the point, I understand that this is the cost of double virtualization.
The question is this - is there a big difference in which environment the virtual machine is running?
I mean the mode of a real virtual machine and in container mode (lxc)
What do I, as a user, lose globally from this? After all, when creating a container, proxmox asks me how many RAM, disk, etc. resources to allocate for it - so what difference does it make to me how and on what the guest OS is virtualized?

Answer 1

Nested virtualization

1. First on the host
   
2. Then on the guest
   

This is for Proxmox on the host. Accordingly, paragraph 1 will be different for you, because Virtualbox.

Answer 2

there is a big difference
there are a lot of important aspects, in terms of at least the core.
what is vps it's just a virtual machine, it can be either lxc, or kvm, or virtualbox.
you didn’t understand the materiel here and decided that the VPS is some kind of special narrowness, but in reality it’s just a renamed virtual machine.