I sunk my twenties involving the sh*tshow that was Microsoft antitrust. No, Microsoft shipping IE by default is pretty benign compared to what Apple has been doing for far longer than whatever Microsoft ever did. In fact, one can make an argument that Windows was really an open platform for developers based on Today’s standards.
I'm not talking about laughable little stunts like IE. I'm talking about the ongoing cancer that is eating up billions from little companies all the way to big corporations. All of that is ongoing, and they squeeze their prey for everything they have. They are the most disgusting and damaging disease you can imagine.
Once you start using even a small fraction of their tech it instantly metastasises throughout the entire organisation because of lock in and "open standards" that weirdly only work with their own tech. If the MS tech creates a problem the solution is to pour more MS tech onto the festering wound.
You apparently have been so insulated from how actual companies have to deal with tech that you think your little forays using computers are what everything should be measured by. All you have is a developer and hobbyist point of view.