This is something you can’t see, but DUNE is the perfect example of what I mean. The “world” created in DUNE was entirely designed to make Paul the most important person in it. After Paul’s story, the most interesting work done on DUNE was not found in any of the sequels, but in fleshing out the world itself - but that is not writing, storytelling or even all that creative. It’s not a great world for any other story as the sequels prove. Even those that Herbert wrote himself don’t compare to the original and the novels of his son are just hackwork which is about the best that world can support.
The Matrix is similar as trying to expand upon a world where a lone, antisocial, immature hacker is the most important person in the world is not really good ground for a new story. Or a world where a backwoods Hobbit is the most important person in it. There is a reason that a hundred times the number of people have read Lord of the Rings and not the Silmarrilion - there are lots of reasons in that case.
Star Trek is probably one of the most well-developed worlds, but if you watch the series, they are introducing new things all the time that we had never heard about even though they could be something as huge as an entire faction of the galaxy rivaling the Federation,Romulans and Klingons. The writers didn’t have hard and fast rules in the original series about the world - instead, they were about what stories they could tell and if their world needed something to make the story work, then it was going to be added and if something in a good story contradicted a previous episode, they were going with the story and not the world.
However, now we have a whole generation of new writers who think the world matters as a setting for any number of stories rather than focus on the story and characters. So we end up with world after world of messy stories and writers wondering why they can’t get published because their ideas are so great. A great world never got anyone to read or watch anything. It will always be the characters and whatever terrible crap they go through. The implication is that writers create a world and harvest a story and characters from it, but the world worth reading is created by a good story with good characters. the world doesn’t exist separate from those characters and the actions they take. it bends and changes according to the needs of the story.