P: Sync metadata to the cloud from the local copy of Lightroom images

I store tens of thousands of images in the cloud using Lightroom CC and have also made a local copy using Lightroom CC.  I used a plugin with Adobe Bridge 2024 to write each image's filename to the IPTC Title Field (so that each image can be identified in my Adobe Portfolio website) and now want to sync the local copy metadata changes back to the colud files.  Adobe support told me this is not possible so I am posting it as a suggested addition because certain Bridge plugins allow mass metadata changes that are not possible to make image by image.