Huh? GeForce NOW is a resounding success by many metrics. Anecdotally, I use it weekly to play multiplayer games and it’s an excellent experience. Google giving up on Stadia as a product says almost nothing about cloud gaming’s viability.
Do you mean Stadia? Stadia worked great. The only perceptible latency I initially had ended up coming from my TV and was fixed by switching it to so-called "gaming mode".
Never could figure out what the heck the value proposition was supposed to be though. Pay full price for a game that you can't even pretend you own? I don't think so. And the game conservation implications were also dire, so I'm not sad it went away in the end.