Description

When uploading a video .mp4 file by dragging it into the editor, this error message appears:

Step-by-step reproduction instructions

1. Find a video file on your machine to upload to a post.
2. Drag and drop it into the editor.
3. Observe the gallery error message, which is out of context for the current action. It probably shouldn't display for a single video file?

Screenshots, screen recording, code snippet

No response

Environment info

Safari, macOS 11.6.

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes