Everyone on HN predicted this, and the only way I would have ever trusted Stadia would be with a CEO-level promise of refunding all purchases if they shut down within 10 years.
That's honestly the magic of Nvidia's streaming service. You're paying for the streaming, not the game. You then link your Steam account and play. So if Nvidia's streaming service shuts down, I still have the games I paid for in steam. It's genius, and the only way I'd ever consider paying for cloud gaming. While I don't like the Xbox game pass method, as you own nothing, at least you're renting and not buying, so you're not technically losing anything if you leave or they shut down.
It was utterly shocking that Google did not copy Nvidia's streaming games bough on other stores idea, especially with so many people are fearful of a Google shutdown.
It's also a mystery to me why Valve hasn't done what Nvidia did. Presumably they will at some point. Unless they don't want to risk other cloud providers from pulling their games from steam.