For example for the given article users of dating apps can already use different payment providers, provided they go with a different phone. If these types of grievances are so bad, why don't users switch? It's worth considering these questions. Apple does certainly try to incentivize you to go-all in with Apple Watch/Fitness+ integrations, AirPod, AirTag, etc.
I believe Europe's general approach is just contributing to its brain drain. A large chunk of huge tech companies in the United States are founded by European nationals, not even children of immigrants. You cannot ignore that California alone has a larger tech industry than the entirety of Europe. It's not like Californians are smarter than Europeans, the difference is regulation.
Personally I believe it's because Europe is way too stifling in its rules and regulations. In comparison the United States is just a far superior environment for innovation and starting tech companies in general.
Resolve this problem, and then Europeans will just move over to a local national company and then the issue of Apple being anti competitive will be no longer relevant, as there will be competition.
TLDR: Help foster strong competitive companies, stop wasting time trying to neuter Apple