Currently, only Personal OneDrive accounts are supported.
By default, your backups will be stored in a folder called "Apps/Notion Backups".
OneDrive integration doesn't have access to any other folders or files in your account except the contents of the "Apps/Notion Backups" folder.
You can revoke access from your Microsoft account.
If you have questions about OneDrive integration or anything else, feel free to reach out.