The year of Linux on desktop is not come=ing, because the year of anything on desktop is not coming, and hasn't been for maybe a decade. Every new mass-market thing runs either in the browser, or, more rarely, specifically on mobile phones. Or maybe it's a game, so it completely eclipses whatever platform experience. If not that, it's entrenched ancient desktop software, like Excel (turning 40 in a few weeks), which is also its own world.

The "desktop" itself, the underlying OS, is irrelevant to most users who are not hardcore pros, like, well, software developers.