The new version of Photos on Catalina no longer gets the Title and/or description from the tags in the Photo file. Irregardless of which tags I used it stopped working after upgrading to Catalina. The files I added to the library, just before upgrading in Mojave still work correctly, the new ones don't. I use exiftool to set these tags in EXIF and IPTC to batch process large number of image files before importing the a few into Photos. Now the new version just broke correctly importing the images.