That's interesting but irrelevant. Apple is being sued because there are no alternatives. In most if not all of those cases, with the exception of Apple, you can acquire and install software (or product) using other means. Apple holds the unique position of saying "You have an Apple device? 100% of all developers absolutely, positively, must pay these extra fees to install any software on our device whatsoever, no exceptions."
And apple hides behind those stances in the name of security, but that is a seriously weak argument. Apple has always utilized security-by-obscurity instead of even attempting proper device hardening all in the name of maximizing profit. Sideloading would've saved them here, required Apple to toughen up security, and yes, diminish Apple's massive profits derived from all app sales that absolutely must fork over a percentage to Apple... on every. single. purchase.
Of course they're going to spin the messaging here to maintain their highest profit line item with operational costs so low (100mil a year to run the Apple Store, with nearly 17bil in profits). Big of them.
There are alternatives. There are other platforms consumers and developers can choose. Apple has done nothing to force you into the Apple ecosystem, you have seemingly endless alternatives.
It stretches the concept of monopoly to say a single entity can’t choose the terms of trade within their own walls, so long as they aren’t preventing entities outside those walls from freely competing and profiting.
If there is only one grocery chain in a state, and they use that position to charge exorbitant fees and vendors and customers have to say them because there are no alternatives, that’s a toxic monopoly.
If there are multiple grocery stores, and the aforementioned one charges higher fees from vendors and customers, and they lose business, then they’ll learn a lesson. If people still shop there, vendors and customers must have decided that it’s worth it.
Also remember, monopolies aren’t illegal. There are different categories that courts will explore to decide if the alleged monopoly was unfairly achieved. It’s not illegal for a company to gain a monopoly if they did it by being the only act in existence or if their products are just genuinely better. where illegality starts to come in is if they act in ways that prevent their competitors from competing in the market.
The iPhone is not a market, it’s a product within a market. And a part of the experience of that product is the App Store. The market in question is smartphones, and within each smartphone offering there are ways consumers can purchase apps. iPhone offers one way to do that, Android offers different ways. There are far more Android phones in the world and Apple has clearly failed to prevent that from happening, if they tried.
I also think a lot of the opposition to Apple falls apart when people try to say it’s merely the percentage charged that is the problem. How can someone say that when what they charges is in line with what everyone else charges? What rate should they charge? How does a court decide that?
Developers are just trying to see what they can get away with, and some contrarians are cheering them on. With it’s smaller market share in most regions, Apple doesn’t have the market share to stop their competitors from doing good business.