My memory might be weak on this topic but Microsoft has already went through a lawsuit due to not allowing people to use other browsers. And that case made Bill Gates lose money.
Also, not trying to be smart or anything but Microsoft isn’t run by Bill Gates anymore. All these shady things started happening after he left. I think he allowed the Company to buy him out because he was getting too old. I’m not really sure on why he did/allowed that.
Plenty of shady monopolistic things happened under Gates as well. The original Explorer antitrust lawsuit dates from the late 90s, the ACPI debacle, etc.
I know. I am a Linux enthusiast myself. After Sadya got in the position, Microsoft suddenly became to get interested in Linux, contributing to projects and even funding them. But to this day, I still do not trust them.
Unfortunately Linux has tons of them nowadays. Google, Amazon, Microsoft are three of them that I know. And not just in kernel, but they also contribute in other projects in the ecosystem.