Google has announced two changes that will impact the web addresses used to share some Drive files, and its Backup and Sync service.
Security update for some Google Drive links, to be completed by Sept. 13
Google is applying a security update to some Google Drive file links to make sharing links more secure. The web address used to share a document will change to include a resource key. Note that Google Docs, Sheets, Slides, and Forms files are not impacted by this change.