Moving folders · Data Parking (the two-pane mover)
What does the "≥" sign before a folder size mean?
Short answer: It means part of the folder couldn't be read — often an area macOS protects — so the size is a minimum, not the full total. Granting Full Disk Access and refreshing the pane usually lets Storage Studio measure all of it.
It means part of that folder couldn't be read — usually a corner macOS protects — so the number shown is a minimum rather than the full total. Everything Storage Studio could read is counted; it just won't claim a total it couldn't check. Hover over the row to see the explanation.
If you expected to see the whole folder, check that Storage Studio has Full Disk Access in System Settings → Privacy & Security → Full Disk Access, then refresh the pane.