As a reminder, Backup and Sync will no longer be available as of October 1. Google recently announced their timeline for transitioning users from Backup and Sync to Google Drive for desktop (formerly Google Drive File Stream). Drive for desktop allows you to sync local folders to Google Drive, sync files between your computer and the cloud, and upload files to Google Drive from external devices.
According to Google, the changes began on July 19, 2021, with the release of a setup wizard to help you transition to Drive for desktop. ITS recommends completing this transition as soon as possible. If you do not transition, you will continue to receive in-app notifications prompting you to transition to Drive for desktop until you do so.
For additional information on this change, refer to Backup and Sync to Google Drive for desktop transition.