I've set up an OpenVPN client in a Qube and that went well, but I haven't tried anything coprorate.

In the past I've had multiple qubes going through a single VPN, but when I tried to set that up recently, the qube that should have been behind the VPN box didn't have a network connection.

I didn't have time to investigate what was going on, but I plan on coming back to that soon. That VPN is increasingly becoming a nice-to-have for me. 

 Thank you for your answer as it was most helpful. 

 Not sure what you mean by corporate VPN. It’s easy to setup a dedicated VPN qube that your other qubes network connection runs through. That way every qubes is either VPN or tor. 

 The bosse's IT department managed VPN. Thank you for your answer.