Folder ...appdata\local\BraveSoftware\...\File System\ is too big (12Gb!)

I was checking the space occupied by my programs and I found the folder
c:\Users(myuser)\AppData\Local\BraveSoftware\Brave-Browser\User Data\Default\File System\ which occupies a total of 12Gb !!!
Inside is this folder list
001
002

032
Origins
Plugins
This last folder “032” had a total of 11.5Gb …
Why is this folder so big?
Can you delete at least the numbered folders?
Perform a browsing history cleanup and these folders remain with the same files and occupying the same space.

I run brave under Windows 10.
The current version of brave is: 1.22.71 Chromium: 89.0.4389.114 (Official Build) (64 bits)