Having to export full DNG files to get edits and metadata is very cumbersome, especially for someone working from an iPad to desktop workflow. Please add the ability to export just the XMP sidecar files. Cloud syncing is limited when traveling abroad (a recent work trip resulted in 300gb of photos that the hotel wifi was not cooperative with) and it would be so much faster when moving from one device to another.
Example of how a workflow with XMP support would work: Copy RAW files to iPad Pro, backup to external hard drive, import to LR Mobile, cull and edit, export XMPs to external drive alongside RAW files, import to Lightroom Classic upon return from trip.
Currently I either have to wait until I get back to the desktop setup to cull and edit, or I have to duplicate a bunch of RAW files as DNGs in the meantime, essentially doubling the space necessary for file storage on the go.
Cloud storage and sync is not a good option for traveling abroad where internet speeds are slow or non-existent (a week in Cuba on dial-up speeds, etc). Adobe, please give us options and flexibility outside of the cloud.