Export Title, Keyword, and Caption
If I export photos (JPEG, High, Most Compatible, Full Size), check both Info boxes (Title/Keyword/Caption and Location Information), File Naming (Use File Name, None) to a desktop folder, then import those photos back into Photos Version 6.0 (321.0.110), only the location information is retained. The titles, keywords and captions are lost. Using macOS Big Sur 11.1.
Is this a bug?
Note: Feedback already submitted to Apple