Earlier quoted context omitted.
That is not strictly true even in the law. However, if we define the "market" as "places that you can legally purchase and install iOS device apps from", the App Store is close to 95%+ of the market share.
So can you give any examples in the US or the EU where such a definition has ever been used? In that case are all of the console makers “monopolies” since they have to approve both digital and physical media distributed on their platform? Does Apple also have a “monopoly” in the smart speaker market since they control what runs on the HomePod even though they are a distance third to Amazon and Google? What about the…
Personally, I would say that they are monopolies. And people are starting to think about them that way because so many games now have an "always online" component. The problem is that even if I own a game disk, that game that I paid money for is suddenly worthless when Sony or Microsoft pull the plug on the online servers.
The issue is stronger with Google and Apple in that smart phones are almost reaching "necessity" level and you can't opt out. You either have Android, iOS or nothing.
We have been here before. Monopoly laws are not some immutable commandments from on high. Monopoly laws were passed in response to specific abuses in rail, steel, coal, etc. We will create new laws to deal with the current crop of abusers.