• Looks to me that it does what it says on the tin.

    😎

    Inspecting the filter, we find:

    WHERE dp.class < 4

    Listing permissions for

    0 = Database

    1 = Object or Column

    3 = Schema

    AND major_id >= 0

    Excluding system objecta

    AND grantee_principal_id <> 1;

    Not the database principal.