I’m curious about the continuity of “Superman/Batman: Public Enemies” and “Superman/Batman: Apocalypse”. At the beginning of “Superman/Batman: Apocalypse” the radio host is talking about President Luthor’s impeachment and there’s a meteor shower going on from Batman destroying the kryptonite meteor, both of which lead one to believe that “Apocalypse” picks up right where “Public Enemies” leaves off. One problem though, Power Girl is already an established character in “Public Enemies”, and “Apocalypse” is about Supergirl’s arrival on Earth. Last I looked Supergirl & Power Girl are both Kara Zor-El.
Powergirl is Earth-2 Supergirl, so them existing together is nothing strange. Powergirl and Supergirl have even had a few adventures together.
My personal favorite is JL animated series take on powergirl is where she is a clone