But why is the “App Store” the distribution channel and not the device itself? I mean Apple would be within their right to just not allow 3rd party apps at all on their devices so why is it weird that they take a cut from anyone who wants to set up a booth on their land?
Like it feels wrong to punish a company for not closing their platform like consoles do to any only working with a few select partners.
The App Store is a marketplace that connects people developing for a platform (iOS) to customers using devices compatible with that platform. It is also the only marketplace that does this. In this way, it is best thought of as a (monopolistic) distribution channel.