Apple does this in other areas, too. In 2017, for example, they encouraged/pressured video-streaming apps to integrate with their new "TV" app which, at the time, they claimed was just an aggregator for all your streaming services.
Part of that integration involved reporting which shows were watched when to Apple. And now, they're using the data they collected from third-party services to decide which shows to produce for their own offering.
By 2017, everyone in the industry knew that they were working on a streaming media service and even after the announcement, Disney and other companies are still adding support.
Part of that integration involved reporting which shows were watched when to Apple. And now, they're using the data they collected from third-party services to decide which shows to produce for their own offering.