Windows 10 has had multiple desktop support since it launched. It's at the top of the Expose-like "Task View" screen, which further doubles as the Windows Timeline screen in more recent versions of Windows 10 (with the keyboard shortcut Win+Tab, and an icon by default on the Taskbar).

The "Aero Snap" window management tools built in to Windows (for horizontal halves since Vista, and quartiles since 10) are pretty powerful. The recently rebooted Microsoft PowerToys includes an app directly similar to divvy called Fancy Zones: https://github.com/microsoft/PowerToys/tree/master/src/modul...