In ODM SharePoint, there is no incremental in the same way as mail migration.
The incremental migration (or remigration) is typically used to synchronize and repair lists in the target tenant. When a list is remigrated, the contents of the list in the source and target tenants are compared. Missing items in the target are restored and items that are updated in the source since the previous migration will be incrementally migrated.
This applies to list migration and there are two options available:
The information about incremental migration of lists and Merging and Re-Migration Considerations can also be found here.