If you are a Windows power user looking for a suite of utilities to enhance your workflow, Microsoft PowerToys is the best choice. It offers a variety of tools, such as FancyZones for window tiling and PowerToys Run for quick launching of apps, catering specifically to keyboard-driven tasks. However, if you're on a Mac and seek a straightforward solution to improve window management without the clutter of multiple tools, Rectangle is ideal. It provides efficient window snapping with sensible shortcuts, making it perfect for users who prefer a lightweight experience.
Choose PowerToys if you want a comprehensive toolset for Windows that empowers advanced users with various functions. On the flip side, select Rectangle if you're on a Mac and simply need a dedicated solution for window management without additional features you might not use.