That’s not the full story - I think you’re understating quite how much of a monopoly on operating systems Microsoft had. It was nearly broken up because of a co

That’s not the full story - I think you’re understating quite how much of a monopoly on operating systems Microsoft had. It was nearly broken up because of a consistent and recurrent abuse of its that position, which culminated in the Internet Explorer case. With the exception of Google in the search market, None of the examples you cite are in monopoly market positions. Nobody will force Apple to allow other browsers on the iPhone, for example, because there are other mobile phones users can purchase if they require that feature. Google (in the search market) is of course currently being examined by Europe for its possibly-anti-competitive practices. But these things take time.