Ahl is only a character created by DC.
Everything in DC come from metaverse Superman,This is officially confirmed fact.
So,Ahl is only a byproduct of Superman.
Do you understand that a character whose "setting" seem to be platonic is meaningless in true canonical and metafictional debate?
Superman is the platonic idea of the Supehero because he is the singularity of Superhero genre.
This is historically true and confirmed/supported by DC official.
Do I need to tell more?