The project page of media_library_bulk_upload → states:
This module basically has the same idea as https://www.drupal.org/project/media_bulk_upload → , however it does not use DropzoneJS for the file upload and instead relies on the Drupal's file upload mechanism and utilizes the Media Library.
Determine if these should be merged or if just the differences should be documented.
Postponed: needs info
3.0
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I'm unclear why the other module was created when media_bulk_upload does work without dropzone... or at least, I've tested this on the most recent version and it works. Maybe it didn't use to?
If that's the only difference, then IMO the other module could be made obsolete and a note added to use this module instead.