Man I will eventually lose interest in a game that doesn’t do this. And I mean that both as a player and a (much more often) GM.
I have exactly one “problem” player in my extended group, and this is one of the issues I have with him, he is resistant to co-authoring the fiction. (He also doesn’t tie himself strongly into the world unless you push him to do so, which drives me batty)
Now, he’s a great player otherwise and a fun guy, so I work with him and try not to push him too much, but if he was any further in that “Alexandrian” direction, I would probably stop inviting him to my games.
My favorite other GM will let us practically build whole nations in his homebrew world, and it’s awesome. My wife and I play two characters from the same mountain range in his main campaign, and we basically formulated the relationship between the Goliath and Gnome and Dwarf populations in the high mountain, how they collectively see the newcomer humans in the lowlands, made the Gnomes of this region basically a mix of Irish and Welsh cultures, while the region is a mix of Celtic and Scandinavian influences, down to having Pictish and Brythonic influenced human clans and Scandinavian Things and an annual Althing where everyone in the North comes together to settle disputes and work out trade and cooperation agreements and all sorts of other things. The back and forth process of developing this place has made all of us care deeply about the land and its people, and dug our roots deep into the soil of this fictional world.