This is not reliable at all. You can really feel 100ms latency.
That's why in the world of pro music, barely anything above 10ms keypress-to-sound latency is deemed acceptable.
Quake III will make all these streamed games feel slow.
Quake III makes all modern games feel slow. But that hasn't had the slightest effect on the typical gamers mindset. If only certain type of games work with cloud gaming then AAA publishers will only make those type of games. Exactly like the case with EA and microtransactions.
However, with these streaming systems I’m not sure developers will be able to use tricks like that. It seems like these tech stacks are running all code remotely. I feel pretty skeptical about whether they can make the game feel good enough this way.
I can see this working very well for games like Total War where hardware specs are super high but response time is not critical