I see you edited to ask this. what do
you mean by virtual memory? As in SSD space used as RAM space? yeah I'm sure SSD space is reserved by the OS and used as a pagefile to move data for less demanding not always needed processes.
I mean in terms of memory allocation and virtual address space though. This basically
https://docs.microsoft.com/en-us/windows-hardware/drivers/gettingstarted/virtual-address-spaces
People are oversimplifing memory managment to physical memory trying to suggest this chunk of physical memory is for this Game or component (GPU) and that chunk of physical memory is for that, when that's not really how it is. The OS doesn't need a 2GB chunk of physical memory like that and it is dynamic even for the game with a lower limit.
If you are trying to suggest VAS doesn't apply to xbox due to 'coding to the metal' or something wierd you can look at the other listed improvement which makes it clear: