The new Request Files feature in OneDrive for Business is great for users but comes with no admin controls. You can block the feature completely with a kludge and use Office 365 audit records to know when people are requesting files. However, Microsoft could make the feature so much better by extending some existing controls to make requesting files work better and more securely.
https://www.petri.com/managing-onedrive-for-business-file-upload-requests
