What I find astonishing is, that they were fined 561 million once by the EU, for not having an explicit "ballot box" where the user was offered different browser as alternative and now they can do way worse, without getting fined.

https://en.wikipedia.org/wiki/Microsoft_Corp._v._Commission

"On 16 December 2009, the European Union agreed to allow competing browsers, with Microsoft providing a "ballot box" screen letting users choose one of twelve popular products listed in random order.[45] The twelve browsers were Avant, Chrome, Firefox, Flock, GreenBrowser, Internet Explorer, K-Meleon, Maxthon, Opera, Safari, Sleipnir, and Slim,[46] which were accessible via BrowserChoice.eu. The automatic nature of the BrowserChoice.eu feature was dropped in Windows 7 Service Pack 1 in February 2011 and remained absent for 14 months despite Microsoft reporting that it was still present, subsequently described by Microsoft as a "technical error". As a result, in March 2013 the European Commission fined Microsoft €561 million to deter companies from reneging on settlement promises"

The only difference is, that back then IE was dominant and is not anymore. But Microsoft is still pretty much in a monopoly position for Desktop market.