Here's the thing though. Those downloads and updates have a massive efficiency factor. Once you have downloaded your assets, they don't have do be downloaded again to be used.
With these game streaming platforms, it doesn't matter that you have downloaded 100GB in screen frames. They can only be used once and then are discarded. In some cases this is a benefit - on Flight Simulator 2020 the servers only have to send you a fraction of their terrain data. But that's a small part of it.
> stable, smooth gaming-as-a-service experience
Netflix and the like work because you can buffer. Is your connection a bit choppy today? Hit pause and let it buffer a bit, hopefully it will stabilize. But games do not tolerate ANY latency issues. Even things like Steam Link - using only your local network - can struggle if there's too much traffic or interference.
Then there's the business model. I don't want a 'subscription'. If I buy a game today I may be spending $60 upfront(if the game has been out for a while, often much less), but I can play as much as I want.
Do you have fantastic internet connectivity, an under-powered device, and you want to quickly shuffle through different games from an online selection? Ok, this could make sense.
Still, this sounds like a far better deal for corporations, as opposed to consumers.