For all its many many many flaws (like having your flagship game start in a snow storm…), Google Stadia very much demonstrated the viability of full game streaming. Even people with shit broadband could still play a “last gen” quality game. Sure people in the outright sticks won’t be able to but… they likely aren’t doing a lot of gaming as getting a 10 GB patch out to them is hard enough.
And if you are only doing game logic and some simulations, rather than full rendering? The bandwidth needs drop even more.