The PS, Xbox and Steam are all different incarnations of cloud services. They are very convenient, but ultimately don't offer any guarantees that one can play the games even a week from now.

At least consoles work without issue in offline mode, although MS wanted to disable that a few years ago, were confronted massive backlash and had to cancel their plans.

A big and relatively recent problem with consoles is that even offline games now more or less require a patch, because they're launched with major bugs.