Just wanted to give some Geforce Now feedback.
I was able to play last two days various games, on both a 2008 Macbook (!!!) and a Samsung S8 (sadly no iOS app yet).
I have a pretty good but standard network both in office and at home (120 down, 30 up), but nothing crazy.
Not sure this is the future but I was really blown away....queques aside (free version) I was able to play, and I really mean PLAY, Destiny 2, Path of Exile, Apex Legends and some others games (almost all free to play because I don't have a lot of games on Steam and I don't understand yet how to link Epic Store) without any problem.
Actually they played fantastic (used an XBOX ONE controller clipped on the phone).
So good if it was on iOS (my regular personal devices) I would have already subscribed and probably bought some games on Steam.
The free version let you play for 1-2 hours each day, but at certain hours (notably when USA is up) queues are long (like 30 mins long). The paid version (5-6 euros per month) has no queue and it's unlimited.
I already tried extensively Steam link between me and a friend of mine with a uber connection (1 Gb down, 1 Gb up, optic fiber) and it was great but this is even better....
If you have a good connection and a Steam library, do try it (Android only for now).
I really hope it comes to iOS soonish.