Is Apple trying to slowly capture the advertising space?

Apple owns the ecosystem. They have been creating all these policies that prevent app-developers no access to user information, but they may still be able to mine all that data for their own use (I have not seen Apple asking “to not track” for their own apps). Is it a long-term strategy to kill the competition and slowly become the leader here. #apple TC: 370k -> 650k -> 400k