Earlier quoted context omitted.
I don't think you read the article. Apple boosted their generic Files app above Dropbox for the query Dropbox . That is the controversy.
While this is an abuse of their monopoly powers, to me this is less bad than locking out 3rd party app stores. I never heard much complaining about that before Epic did their thing.
Epic is one of a few large enough to make the necessary waves to have an impact. But behind Epic are thousands of unhappy app developers. Most of which are otherwise ignored. Also, complain too loudly and Apple has plenty of indirect ways to harm you. This is also an outcome of monopoly.