Orbi RBR20 as VPN client?

As indicated in the subject, is there any way to connect my RBR20 to a VPN as a client?

My current ISP is Cox Cable. They provide a public IPv4 address from which I forward ports to a server on my internal network. The server has dynamic DNS software to update DNS tables if Cox changes the DHCP public address.

I'm testing T-Mobile High Speed Internet. They use CGNAT and their internal network is IPv6 only. I don't get a public IPv4 address and port forwarding is not an option, so I can't connect to my server from outside my local network.

I'm testing TorGuard VPN to create a public IPv4 address that I can forward through a VPN tunnel to the router. My GL-iNet mobile router has an option to set up the router as a VPN client, as opposed to a VPN server. Is that an option with the Orbi?

Thanks for any well-intended suggestions.