Think of it as XMonad-like, with permanently tiled, auto-arranged windows (see https://workspacer.org/screenshots/) and able to move/rotate windows using keyboard alone.
I use FancyZones a lot and am currently trying to find a Mac analogue - nothing does "drop and place" the same way.
In the meantime, I've switched from Moom to https://github.com/kasper/phoenix and implemented XMonad-like tiling (Amethyst-like) in a couple of hours:
https://gist.github.com/rcarmo/1daccbe9abbbb5c133b7b48d05cc0...
...in comparison, I have yet to build a FancyZones equivalent since mouse handling requires a completely different logic when doing window placement (I have to grab the current window frame, figure out if it matches a predefined zone, etc.).