I have two identical Dell boxes, one running Windows 10, the other Fedora. I have been using Windows since version 1 (a real dog) and Fedora since version 10. The Win system is my main workhorse because: 1. I need to exchange highly complex Word documents with my clients and LibreOffice is just not 100% compatible (although improving slowly). 2. The onset of RSI means that I'm heavily dependent on Nuance Dragon for dictating and it's not available for Linux (and Wine seems unable to run it). 3. Plug and play - my Brother colour laser printer worked perfectly with Windows from the moment I plugged it in. Linux recognised it as just a plain text printer; after some searching, I found I had to open a terminal and type in three lines of gobbledegook - and even then it didn't work. NOT good enough!
I quite like Linux despite the amateurish appearance of its GUI (and whoever thought that shrinking the vertical scroll bars to the minimum was a good idea?) but at the end of the day my priority has to be getting my work done and so far Windows is ahead of the pack. Oh, and another thing: I don't think Linux will ever gain an important place on the desktop while there are so many distros around. Three at the most with absolutely no compatibility issues between them is what's needed. One would be even better - it doesn't really matter which one.