Kahndaq

I've heard from the movie Black Adam where Amon tells Teth-Adam the story about the Champion of Kahndaq and he said that champion is like a demigod, so does anyone think that being empowered by six greek gods or egyptian gods turns you into a demigod?

WHY must the DCEU be so confusing some times?? I have been a DC fan for years, but with the doppelgängers on different Earths, like all the Al Rothsteins (Atom Smasher), and how they keep changing his story? Why must the shows have a different Atom Smasher than the movies? Why not just leave him dead as he is in The Flash?

Also, I may be going too far down a rabbit hole, but if he’s alive in Black Adam, then what Earth is this taking place on?? There has obviously been a Kahndaq on Earth-1 at some point, because a Kahndaq diamond is mentioned in Season 1 of the Flash, but Earth-1 Al Rothstein is dead and wasn’t a meta-human to our knowledge.