You’ll find Friends Mix in the For You tab in the Music app. Some people are seeing it in the iOS 12 public beta.
It doesn’t own, track, or share information that users provide. And there are no ads.
There is a social network for anyone, like readers, athletes, outdoorsman, and a whole lot more.
You have to do some digging to find the Apple Music social profile settings, but once you’re there you’ll find them easy to use.
It’s providing a great service to professionals, while sparing them the agony of wading through banner, pop-up, or any other kind of advertisements or spammers.