Not sure about the second part. Considering they have a dominant market position/gatekeeper/whatever, they probably have to actually make an argument for "why n

Not sure about the second part. Considering they have a dominant market position/gatekeeper/whatever, they probably have to actually make an argument for "why not" in the case of tracking blockers (age restricted content is another discussion entirely). Otherwise, abusing dominance in the phone app store market to benefit their (also dominant) ad surveillance business sounds very, very much like something the DMA could and should punish.