Anyone have any experience or anecdotes on the extent to which Apple has Product Managers working on its in-house software? And what sort of overlap or collabor

Anyone have any experience or anecdotes on the extent to which Apple has Product Managers working on its in-house software? And what sort of overlap or collaboration happens between products and teams? Is it a fun gig? As a PM, I would love to work at Apple. If I were looking at open job descriptions, should I expect them to call out specific apps I’d be working on?