I can only speak for myself: over the years I have become increasingly open to developing the world and story through cooperation and consensus, and the game just keeps getting better!
I find that, for the most part, players are thrilled to have someone putting in the work and are very appreciative. When they have a character/backstory idea, I try to put aside my own preconceptions and think:
1. They obviously were excited enough about this idea to want to share it.
2. How can I accommodate them within the constraints of world stuff that is already in play, even if they don’t know it?
3. If I open my mind a bit, what new story beats could come from this? Fun!
Often my response is “Amazing! I love it!” Occasionally it’s “I love the concept; can we tweak it a bit like this, to make it fit better with some other stuff?”
What I’ve found is that sessions are a lot more fun because, to a significant degree, the story is unfolding right at the table, taking turns I never anticipated. And that is entertaining for me!