I have done quite a bit of work on this module to make it more efficient for large image libraries, and to be more configurable for use by a large organisation. My version of the module now creates Media entities, too.
My work was sponsored by Cycling UK for their Drupal 9, soon to be 10, website at https://www.cyclinguk.org and it is likely that they will continue to sponsor fixes and improvements over time.
I have working code for Drupal 9 and 10 that I'd be happy to share here for others to use and contribute to.
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