The Hidden Files
macOS includes a desktop organization feature called “Stacks.” If your desktop is heavily cluttered with hundreds of screenshots, PDFs, and random folders, activating Stacks will instantly organize them. It automatically gathers all files of a specific type (e.g., all images) and collapses them into a single, neat pile on the right side of your screen. You have to click the pile to expand it and see the individual files. While this creates a pristine, minimalist desktop aesthetic, it severely impedes workflow for users who rely on spatial memory—remembering exactly where on the screen they placed a specific, important document just an hour ago.
Restoring the Clutter
To retain full manual control over your file placement and stop macOS from automatically creating desktop Stacks and grouping your icons, you must disable the feature directly from the desktop environment.
Navigate to your main desktop so that you can see your wallpaper. Right-click (or hold Control and click) on any completely empty, blank space on the desktop background. A context menu will appear. Look specifically for the option labelled Use Stacks. If Stacks are currently active, this option will have a small checkmark next to it. Click on Use Stacks to deselect it. The moment you click, the checkmark disappears, and all your files will immediately explode out of their neat piles, scattering back to the exact physical coordinates on the desktop where you originally placed them. They will remain there permanently until you manually move them.