Who would've thought? This isn’t going to fly with the EU.
Article 5.3 of the Digital Markets Act (DMA): "The gatekeeper shall not prevent business users from offering the same products or services to end users through third-party online intermediation services or through their own direct online sales channel at prices or conditions that are different from those offered through the online intermediation services of the gatekeeper."
Friendly reminder that you can sideload apps without jailbreaking or paying for a dev account using TrollStore, which utilises core trust bugs to bypass/spoof some app validation keys, on a iPhone XR or newer on iOS 14.0 up to 16.6.1. (ANY version for iPhone X and older)
Install guide: Trollstore
The fine would be approximately 10% of Apple's total revenue and the fine increases by 10% every violoation so I doubt that Apple can not accept the regulations.
Unfortunately, Apple has the resources, both legal and financial, to tie that up in the EU courts for decades.
We'll see what happens
What if I told you one of those two can make new laws?
In one afternoon the Commission+Parliament can change the basis of whatever case Apple wants to fight. And they are up against Vestager - she makes multinational software companies bend the knee twice before lunch.
You're underestimating what EU can get gone when they're motivated to get it done.