On physical ultra-wide monitors, having fixed zones (like PowerToys FancyZones) is essential to manage the vast screen real estate. This necessity is even greater on Fluid's infinite spatial canvas.

Currently, having to manually drag and align apps in 3D space without docking or snapping is a major friction point. We need Spatial Zones: defined 3D areas where windows automatically snap and dock. This would allow us to utilize the massive spatial environment efficiently without the chaos of loose windows.