VR controllers are significantly better than a SpaceMouse for teleoperation. Even if I already had a SpaceMouse I would buy a Quest 3s and switch to it, if I was doing more than a trivial amount of teleoperation. (As is typical with robot teleop setups, I would not wear the headset on my head. It's merely a dongle to track the controllers).
Yeah I can see that. Especially the rotation part is pretty awkward (hence why I currently do the axis parallel to table surface trick and only use the yaw angle to rotate the gripper). The space mouse was super easy to get started with though, so in terms of getting something up and running quickly it has an advantage.