Bedrockgames
I post in the voice of Christopher Walken
Well, the pure OSR sandbox guys I know don't ask questions in the way you mean, not about the setting anyway, nor are players interested in answering them. In those games the sandbox setting is GM notes and random tables with zero player input or reworking based on said input (and that is the way they want it). It's not the way I run sandbox play but it's common in the OSR. To be clear, we are talking about a world in motion where character actions have effects and change things, but the players aren't being asked questions about the setting and adding authorial type content as they are in many PbtA style games.
my only quibble here is it isn’t just GM notes and random tables. It can be but I rarely encounter sandbox GMs who are strictly limited to those things. The GMs logic and creativity are expected to play a role as well in answering a question like “is there a cultivation sect or sects in the city” or respond to actions like the players trying to negotiate with the prince for control of recently discovered salt deposits in the desert that they stumbled upon in a recent venture south. and even something like the salt deposits might not have bee. In notes or a map before hand. I usually do like to put down firm geography like that but often on a large scale. I may still have to answer a question specific to a smaller area like ‘are there any natural resources in this hill’ on the fly