I would guess Linux desktop means nothing until it gets close to 15% for software developers to include a Linux version for new software releases, of any kind or type of software.
I do PC gaming and I only use Windows on that one gaming computer, so I can play any and all games, and have the best graphics hardware performance.
All of my other computers are only a mix of BSD and Linux, but for playing games I'm not willing to use anything other than Windows.