https://www.denofgeek.com/comics/apocalypse-darkseid-and-thanos-a-guide-to-big-blue-superhero-movie-villains/
Does the villain of X-Men: Apocalypse look a little familiar? Don't confuse him with the guys from Avengers: Infinity War or Justice League!
to bigapocalypsedarkseidthanosguide
https://www.gamesradar.com/zack-snyder-explains-why-darkseid-forgot-the-location-of-the-anti-life-equation-in-justice-league/
Zack Snyder explains why Darkseid apparently forgot Earth held the ultimate weapon in Justice League
zack snyderexplainsdarkseidforgotlocation