How to MASS delete autofill form data

I struggle to delete all the needlessly saved email form data from a form (non-email!) field one by one with shift+del or the ‘X’ button at the top-right corner of the panel that endless show all the useless suggestions in a group of 6. There are hundreds of them from past entries by various people.

brave://settings/addresses is completely empty
brave://settings/clearBrowserData says my autofill Form data is “None”, which I cleared a couple of times but the autofill history violating data privacy still persist.

Where is the file storing this data located so I can just delete it?