Thanks, Ziqiao - enabling InProcessShareOwnerParticipantInfo with entitlement com.apple.developer.icloud-extended-share-access now works to show the owner's details such as given name. However, no details of the rest of the participants (ironically) including themselves returned no given name. Is this on purpose?

Thanks, Ziqiao - enabling InProcessShareOwnerParticipantInfo with entitlement com.apple.developer.icloud-extended-share-access now works to show the owner's details such as given name. However, no details of the rest of the participants (ironically) including themselves returned no given name. Is this on purpose?