Zorin OS gives you the choice of four different layouts, two of which are similar to Windows and two are very Linux-centric. That's just the free version. If you pony up for the Pro edition, you get six more layouts (including one that resembles MacOS). You choose your layout during your first login, but you can change it any time, using the Zorin Appearance tool.
Zorin OS experienced a significant increase in downloads following the release of Windows 10. Within a two-day stretch, Zorin OS had over 100,000 downloads, which was a record for the distribution.