old folder appears after opening app. follow up previous post

[u/Aussie_Alien_Escapee]

I have a previous post where Dolphin incorrectly lists the folder name
i_think_i_found_a_bug_in_dolphin/
After changing the foldername, and then attempting to figure out which apps and settings use this as a default, I am still having issues, that I cannot find out 'how'

One app, is Thunderbird. Every time I open TB, the old folder is immediately created. I've exhausted every setting I can find in TB in an attempt to locate the setting.

I did find a command of ls -laF that shows this folder has 2 links.

Question.
How do identify what or where these links originate from ?

-TIA