It honestly doesn’t matter. We’re talking about hundreds of millions of devices sending data in either case. A hundred million more provides no additional value.
Major updates are infrequent maybe once a year if you always update, it’s not pestering you. And the UI makes it very easy to skip unlike some designs.
So there are people who were opted-in that change their minds. My friends and family opt-in rate is <50%. And most of them are non-technical.