(Image credit: Zorin OS) The developers of the Linux-based Zorin OS say their latest release, Zorin OS 18, has already been downloaded more than one million times, and according to telemetry, over 78% of those downloads came from Windows systems. It's not a perfect proxy for real migrations, but it's a striking data point during a moment when Microsoft's user base is unusually restless. As Windows 10's end-of-support deadline disappears further into the rear-view mirror, many users are still wei...