If u have never played PoE with your other PC, you dont have to use VM (if you only want to bot with 1 Account).
You have to use VPN else both accounts got the same IP (including your main account).
I dont think they actively search for ppl using VPN but I guess they could see who uses one.
Just dont pick a common VPN service cause some IPs might be already blacklisted there from some other botters