...but one of the biggest things for me is the desktop itself. Even despite the problems mentioned above, quite frankly, I just don't like having to use the Windows desktop. I've come to really appreciate more minimal desktop environments like GNOME and Pantheon, and Windows desktop just feels overly complicated in a number of areas. For example, let's compare the Windows file explorer to elementary Files.
Windows' file explorer has a lot of buttons for actions you can take, and the above picture only shows one tab. I don't mean to say that having more options is inherently a bad thing, but that just looks like a mess to me.
elementary Files, on the other hand, is much cleaner. Your view options are covered in the header bar, with the option of an icon grid, a list view, or column view; you can open tabs just below that, with the + (tabs being a feature that Windows' file explorer lacks entirely); actions for files and folders themselves are handled contextually in the right-click menu. All in all, a much cleaner design that remains very functional and aesthetically-pleasing.
Again, I don't think that having more options is inherently bad, but presentation is important. In this case, less is more.
Oh, and one more thing I about the Windows file explorer: if it freezes up and you have to kill the process, it takes the rest of your desktop with it. That's not the case on any Linux desktop environment I've used.
That's a rough summary of why I don't use other platforms. So, why do I use Linux? Well, a lot of it goes hand in hand with why I use elementary OS, which, again, you can read about here.
Finally, and the most important to me: the freedom of choice, and control over your own computer. While I love and advocate for elementary OS, it isn't for everyone, but there are so many Linux distributions to choose from, as well as desktop environments. Do you like GTK, but hate GNOME? Cinnamon and MATE are great. Do you prefer rolling releases, but want a more curated experience? Go with Solus. Do you want a system that's precisely tailored to your exact liking? Arch is ready for you. With all of the options in the Linux world, there really is something for everyone.