https://developer.apple.com/app-store/review/guidelines/#per...
They could also launch an alternative browser engine for iOS and iPadOS in the EU.
That's incorrect, and Firefox doesn't blame Apple for this. Many 3rd-party iOS browsers do ad blocking natively and/or via extensions. https://orionbrowser.com/platforms/ios
https://www.firefox.com/en-US/mobile/focus/
The only thing I use Firefox on iOS for *is* its ad blocker.
This Firefox Focus on iOS does effectively block adds on a recipe site unlike plain Firefox. I just did a cursory head to head test on the same recipe site url.
Thank you for sharing this!
If free computing and user control are a priority for you, consider switching to GrapheneOS. You get better security than iOS, a UI/UX that does not assume you are mildly retarded, and full freedom to run any program from any source, including IronFox (a hardened Firefox fork).