Cloud Application Backup (CAB) for Microsoft 365 SharePoint Online covers the following:
Data backup (sites, site collections, documents, and document libraries)
Backup can be activated for all or selected sites.
CAB restore process is non-destructive—that is, the restored data does not overwrite the existing one.
To administer CAB for SharePoint Online in your Microsoft 365 environment, the following are required:
Microsoft 365 (Business, Education, Enterprise, Government, or Nonprofit) with SharePoint included.
Microsoft 365 account with global administrator or SharePoint administrator role.