I tried a well-supported Linux distro over the summer, and it's severely not-compatible with my GPU. An OS that crashes every 10 minutes with the FOSS drivers and runs slower than continental drift with the proprietary drivers isn't a viable alternative to Windows. At some point in the future I might run through a bunch of other distros to see if there's one that is stable with my hardware, but I honestly don't have enough time in my life to do that right now. I went back to Windows because I could install it in an hour and be done with it for the next year or two.

There are people who have the patience to continuously fight with their OS in order to get it to do what they want it to... but they're a small subset of the population. Most people just want their computer to work, and until Linux has that (or until we completely reorganise society so that everyone has both the time and money to be able to spend time making their computer work rather than using the computer), there's not going to be a rush of people abandoning Windows.

I love the idea of Linux, but was not happy with the stability and support at this point in time. I'm more computer-literate than the average person, and even using a well-supported Linux distro, I found the documentation haphazard and in some cases plain wrong (or severely out of date?) If I struggled with it, I certainly wouldn't expect people less comfortable with computers to have any capacity to install or run Linux. For all Windows' flaws (of which there are many), it makes owning and using a computer easy, allowing you to just get on with the work you need to do.