How to mass-remove tags?

I want to replace tags on hundreds of images. They’re all tagged one thing and I want to replace that tag with a new tag.

I can search all images with that tag and batch-add the new tag, but I can’t seem to batch-remove them.

Seems like there was a 2019 thread asking about something similar: (and the answer back then was “no”)

Sorry, the answer is still no, there is no built-in tool to do this. However, it would be possible to write a script to do this using the API.


Quick follow-up with additional information:

I confirmed that using the batch edit tagger only adds a tag. It cannot remove or replace tags. If you have existing tags on the observation, those will be retained.