I created a quick plugin that will create tags and apply them based on folder names. This was made for personal use but I figured I would share it. I have no idea if it works on other operating systems. If I have time and there are issues I may be able to fix them but this was thrown together with AI cuz I don’t really code.
https://github.com/Cruxyr/Folder-Tags
Stash source URL - https://cruxyr.github.io/Folder-Tags/main/index.yml