Read the post right above yours. Apple shows its own ads in its own apps.
I’ve just selected one of your many random posts here all saying broadly the same thing.
1) Facebook are selling your data to undisclosed 3rd parties without your knowledge or consent. You cannot opt out of this other than by not using their service.
2) Apple use your data, on device, using differential privacy techniques to either improve their products or services or to deliver ads to a group of broadly similar users. You are not tracked cross platform or cross applications. Your data is only ever used in an anonymised, aggregated form where you cannot be individually identified and is NOT SOLD to third parties.