There are several architecture approaches for mergers, acquisitions, divestitures, and other scenarios that might lead you to migrate an existing Microsoft 365 tenant to a new tenant. There exist many excellent and established tools for migration between tenants. Recently, Microsoft also offered own solution for migration of tenants.
Enterprise Bridge does not pretend to be the best and universal solution for migration from one tenant to another. Every tool in this field has its own strengths. A single and universal solution is probably not possible at all. Enterprise Bridge can be especially useful, if you need selective data migration between tenants or have automatic synchronization of content after original migration. Many alternative tools lack this unique selectivity and automation.
With Enterprise Bridge you can copy individual fragments of content from one SharePoint instance to another as well to or from OneDrive. Fragments can be of any size from entire document library to only handful of files in a folder. Once migrated, you can save your migration scenario and execute it automatically in future for efficient synchronization of content.