Mac: Where is the Mac OneNote Cache Folder?

The cache folder of OneNote for Mac is hidden deep.

Gem Menu for Mac OneNote offers a menu item to open the cache folder of OneNote for Mac, to facilitate your use.

Cache Folder Menu Item of Gem

The menu item located in: Gem Menu for Mac OneNote -> "Gem" menu -> "Cache Folder" menu item.

Mac OneNote Cache Folder

The Gem Menu opens the OneNote cache folder with Mac Finder.
Here, we can see the OneNote for Mac data files.