Depends on your definition of ”ads”. As someone deep in the apple ecosystem without a subscription to Music or Apple TV I get regular full screen promotions/ads to subscribe when all I want to do is listen or watch my bought content.
Yeah I see them creeping in everywhere in Apple's world- now there are ads in Apple Wallet
Connecting new AirPods to an iPhone for the first time now shows Apple Music subscription ad right on the pairing screen
It is pretty riddled with ads though. By default the Home Screen shows the tv all and it’s completely crammed with ads.