Flat-Earthers often make an unreasonable demand that astronauts in space zoom in using a camera toward the upside-down horizon to reveal an upside-down object on the horizon.
If we cannot zoom in toward the horizon from a flight to reveal objects on the horizon, then it is unrealistic to expect astronauts to be able to zoom in to reveal objects on the horizon.
Horizon’s distance from a flight is approximately 350 km. We cannot zoom in on an object that far away because it is beyond the visibility range and would require a huge camera lens to resolve it. And it will be much more unrealistic to do it from space.