Apps · Moving apps to your fast drive
What is the shortcut Storage Studio leaves when it moves an app?
Short answer: It's a tiny link (a symbolic link) at the app's original location pointing to its new home on your fast drive. macOS follows it, so the app opens from the usual place.
It's a small link — technically a symbolic link — placed at the app's original location that points to the app's new home on your fast drive. macOS, the Dock, Launchpad and Spotlight follow it automatically, so the app opens from where it always did.
It takes almost no space. Don't delete it by hand: removing it would make the app look missing. To undo a move properly, use Move back in the Moved tab.