ScaleGizmo updateGizmoRotationToMatchAttachedMesh set false not effect.
No, it’s not. And it is by design. It’s to avoid skew matrices where rotation/scaling components deforms the mesh so its axis are not orthogonal anymore.
Or we can remove the rotationGizmo updateGizmoRotationToMatchAttachedMesh accessor?
No because it’s available in the parent class and also to keep backward compatibility.
So these 2 reasons, it’s important to keep it in scaleGizmo.