Yes, we would like this feature. SharePoint Online is the only document solution we have. We don't have any on-premises servers. We need to sync a shared vault to a team of about 10. We tried using the Folder Sync feature and picked a folder that we all sync (from SharePoint Online that is syncing using the OneDrive Sync Client). However, the sync caused multiple files to be created since the app had a hold on the file when two people had it open at the same time.