Meanwhile Nvidia kept improving geforce now and it's actually really good now, running on everything from operating systems to browsers with no noticeable lag. Cheap too, like $15 a mo or so, and works with most of your Steam library. Where it doesn't, usually means that the publisher wanted to get off for some reason.
Xbox Game Pass is another great steaming option (via xcloud), Netflix like subscription service that lets you stream games.
There's also Shadow and Luna and such. Many companies are doing this well, just not Google.