That was because it wasn’t technically good yet
Unity was notoriously trying to solve this but couldn’t find a way to fix latency
I think Google stadium(?) ran into the same issue
Concurrent shared state at raytracing speed across the internet is basically impossible
I think Stadia was pretty good and someone will figure out that business sooner rather than later (nVidia has a good product as well). Totally changed my mind on the concept of renting a server to play a game.