You need to ensure that you can grant Group4 Azure RBAC read-only permissions to all...

On storagel and storage4, change the Account kind type to StorageV2 (general purpose v2).

Recreate storage2 and set Hierarchical namespace to Enabled.

On storage2, enable identity-based access for the file shares.

Create a shared access signature (SAS) for storagel, storage2, and storage4.