Veracrypt hidden volume question

I want a hidden volume but I’m having a hard time after reading, actually understanding it fully. I realize I can have files on there that stay private, I understand the outer volume/hidden volume/multiple password arrangement but could I install a program like a vpn, Virtualbox etc on that volume and it remain anonymous? Wouldn’t it require changes to the registry etc? How would I go about this the right way?

Found here