Ultimately, we are looking for something as follows:
Below are a few steps to enable Document List Folder breadcrumb navigation on SharePoint Online.
- Now, you are able to update Document List Web Parts for your site and subsites.
- Navigate to the Document List Web Part, Edit Web Part
- Scroll down to Miscellaneous settings, update the JS Link field to point to your FolderNavigation.js
- Select OK
This quick adjustment has helped our team become more productive when managing media via Document Lists. I hope you will also find this useful.