The way Stadia, accounts, and Pro have been handled since launch hasn't been the slickest operation, but it's in a good place now. You don't actually need a Stadia account anymore for some basic features or even to play some of the demos. But I think the best thing Google could do...
Nvidia’s GeForce Now is now pushing free reduced-friction game demos where you no longer need to sign into Steam or Epic just to try one out.
A game that is free to play. The catch of this business model is that “free to play” doesn’t mean free to play forever or free to play without a disadvantage. Some successful F2P games have reasonable-enough business models (Fortnite and TF2 limit money to cosmetics, for instance), ...