"Why can't this movie just be about superman? I'm tired of this extended universe."
This is something that i've said before.
The only real hits that DC had over the last decade are The Batman and Joker, 2 experimental capeshit movies that aren't like anything else in the genre and had zero connections to anything else.
You need zero homework, you don't need to care about 38 characters that are not even doing anything here but are just being set up for movies 3 years from now, 2 hours and then it ends.
Even their only DCEU hit, Aquaman, was almost completely removed from everything, it was a fantasy action adventure road trip movie with a crab army and a Kraken and an octopus that plays the drums n shiet.
It's honestly a fun movie if you don't care about any of this shit, that's why it made a billion.
Just make one off movies, stop with this cinematic universe shit.
It worked exactly once and even with the MCU, when you read the list of decisions they made and what almost happened, it was a miracle that they pulled off what they did.
It won't work again like Marvel did it, the quality would need to be higher in terms of storytelling, which would require to write 3 or so phases at once and then stick to what they wrote, which is impossible for Warner Bros.
Just adapt Superman: Red Son for $200 million, don't change anything and it will make a billion, easily.