Have you tried a VPN connection to your powerful workstation? What didn't work?
all the fun lag of trying to use X forwarding, now in 3D :)
I wonder if this might improve over a more modern transport, if you were using an IPSec VPN.
Wireguard is enabling us to re-think what's possible over a VPN. Here's an example of what I mean. The network stack is based on Wireguard, with https://github.com/tonarino/innernet providing the topology and identity provisioning. https://tonari.no/