Apple has about 45% of the US smart phone market with their next competitor being Samsung at about 29%, with both of those companies on track to lose share to Huawei. Globally Apple is about 11% of the market, with Samsung selling well over double of what Apple sells.

Those numbers, combined with the fact that a new competitor is arising to take market share away from Apple strongly implies that Apple is not currently behaving in an anticompetitive fashion.