I have 'solved' the issue by setting up a host. A notebook in the remote network can use the host connector to connect to the VPN cloud as a host.
I can now connect to the VPN cloud as a user to approach the host on the VPN ip to use RDP.
https://openvpn.net/for/securing-rdp-for-remote-work/
I am now depending on a remote pc/notebook so that's not super, but for now it's acceptable + 'easy' to setup