I don't only play Civilization. In fact the reason I have the Windows box under my desk is for CUDA work on a big GPU while my main computer is an M4 Mac. And FWIW, Steam Remote Play is utter dogshit compared to RDP. RDP is actually one of the best remoting technologies.
Still can't make highly dynamic desktops super ideal remote.
But...wait...just looking and it appears that Civilization has joined GFN again. Apparently they saw GFN as a selling point for 7 so they offered it again. Huh.
I was very surprised by this too. I think it was Windows 8.1, when going from one machine to another, was basically a no-compromise experience for most gaming, except for FPS—the latency was always a little too high.
Nowadays I can use Parsec over WiFi at 4K and almost can't tell the difference. Almost. And only with a controller.