You're talking past the issue. When Microsoft tells OEMs -- someone not Microsoft, "we won't license you Windows unless you include and set as default Internet

You're talking past the issue. When Microsoft tells OEMs -- someone not Microsoft, "we won't license you Windows unless you include and set as default Internet Explorer" that's anticompetitive. It's the act of using your pull of needing to buy Windows get another business to do something unrelated. MS could absolutely not allow you to have any other browser without it being anticompetitive, to wit this is what happens on Xbox. This is why Apple won and Google lost their case with Epic. Google tried to have an open platform but then used their pull with gapps to force OEMs to privilege the Play store. The mere act of privileging your own products and services on your own platform isn't anticompetitive.