Just about every app has a "help" button, but do you really use it? What about captions on a video or any number of other accessibility features? They're in everything, but not used for everything.

It makes perfect sense that they exist and were way overdue for an update, but they're just extra blades on the multitool. Perhaps in some designs they become more integral, but that is expected and invisible.

Yes "everything", but that's not even close to sufficient to become a huge breakthrough like the internet.