macos - Unusual Size value displayed in Finder; meaning of

While investigating an issue of iCloud failing to sync on my iMac I noticed a couple of unusual things in Finder. In the "Size" column some values were preceded by an upward-pointing or downward

The Finder confuses with wildly inaccurate figures for available

macos - How can I show the Dimension column in Finder? - Ask

macos - What does the arrow on the bottom left of the folder icon

These secret Finder settings will vastly improve your Mac

macos - OS X Finder not showing correct file size - why and how

Finder Tags: commonplace metadata – The Eclectic Light Company

macos - Why does my Photos library differ in size looking in

Ways to organize files on your Mac desktop - Apple Support

Find Duplicate, Large and Hidden files on Mac

How to increase text size in macOS Monterey

Custom Finder icons, resources and Mac OS history – The Eclectic