About the Stage and Camera Views
In the Stage view, the perspective is from a fixed point in space, as if were standing on the stage looking at the various elements.
If you switch to the Camera view to preview the scene, the perspective is from the camera lens, so you can see exactly what the camera captures as it moves from one keyframe to another.
Therefore, if you make changes to the camera position, especially if you change the camera’s focus, use the Camera view to preview the camera move accurately.