Apple throws a LOT of weight around that users would NEVER be able to force.
They've forced no tracking. No individual user could EVER hope to achieve that. Facebook et al track everywhere else. This made the big player mad. Here comes DOJ to crack down on this "abuse".
They force easy subscription cancellations, and remind users on app delete to cancel subs.
They control app refunds on scam apps (I've had this once, refund was quick).
They are forcing apps to allow for truly private signups (apple ID based).
Apple's business model is to create a walled garden that appeals to users tired of the DOJ's and FTC failed efforts on the internet at large. Yes, they charge rent ON THE BUSINESSES that want to play in this garden. Because of the high user trust user spend in this garden is HUGE compared to other platforms.
DOJ / FTC could take action on anything online where rampant scams (tech support) and frauds go totally unchecked. No action by DOJ/FTC. Seriously, your grandma will get bogus tech support help, they will loot her account, and you will not even get a call back. Tellingly, DOJ/FTC focus on Apple, a company with FAR higher customer approval than almost any of there folks DOJ is carrying water for (scam shopping comparison sites, scam recurring memberships / subscriptions etc).
The idea that apple are "scammers" goes to show how warped the values are of the folks on the internet at large, including developers who consistently enable the many dark patterns. My elderly parents WILL NOT buy anything non apple.
When they have a problem with their device, they get legit support (not always free) from apple. Meanwhile, the list of crap behavior by every OTHER player online is crazy, from the "free" email providers (who spam and scam their way with toolbars and add-ins) to all the rest. Seriously, if they were to actually trust DOJ/FTC to keep the net clean, and signed up for another free online service (with the required toolbars etc) they'd be in for another round of crazy pop-ups and pain.