At the same time, schools and workplaces have taught people the design language of Windows, and the network effect of having so much of the world’s end-user PCs running on Windows means that there are vast resources available targeted at people without technical knowledge. At this point, for better or worse, Microsoft’s design language is the global default for non-technical people.
People forget that this was purposeful, too.
Why did Microsoft not do really do anything about pirated Windows in the 1990s?
Because they were banking on the network effect of everyone being used to their operating system. It’s part of why they started essentially giving it away in the modern era to end-consumers.