Dollar share of a market is 9ne measure of market share that can be used; and a large enough market can be split into segments when applying monopoly tests.
And I’m sure you have case law that the high priced lawyers couldn’t find that would have convinced the judge in the Epic trial that Apple was a monopoly?
Well, I would assume whatever it was, a bunch of high priced lawyers would have a better strategy and didn’t miss a line of argument that was found by a random person on HN.