GeForce Now doesn't lease games. Just let's you run games you already own on other stores using cloud hardware.

Well, that makes sense for the most part, but there's the important detail that there are streaming services that grant you a fully uncontrolled rig, I just cant think of any that are free. In fact, Geforce Now used to do this, until legal issues arised from a clause being extremely specific making users unable to legally play on a device they werent physically in contact with, real shitty but allegedly not Nvidia's fault or the cloud streaming service as a whole.