In theory, I hate this concept for the Superverse.
I like the idea of Krypton being the source of most things sci-fi for Superman's stories. The idea that such a place had literal deities is more than a little frustrating to me.
But maybe that need not be the case.
I never read THE LAST GOD OF KRYPTON by Walt Simonson and the Hildebrandt brothers.
Was this any good? Looks gorgeous enough that I may have to look for it.
Main point: I would like to know more about Rao, Cythonna, and any other gods of Krypton that have seen publication and interacted with our boy Kal.
Is there a legit pantheon? Or is it just these two?
What are their powers? Is Rao a galaxy-buster like Marvel's Classic Odin or far beneath him in terms of feats?
What are the stories that these Kryptonian Gods appear?
Questions, questions, questions ...