Restoring your data from a Google Drive backup is the most efficient way to get your new phone up and running with all your old apps, contacts, and settings. How to Restore a Google Drive Backup to a New Android Phone
The primary way to download a full device backup from Google Drive is during the of a new or factory-reset phone. how to download backup from google drive to new phone
Back up or restore data on your Android device - Google Help Restoring your data from a Google Drive backup