I notice that as well, some of the movements just seem awkward. Interestingly, this has been the case for a long time too now. Once in a while you see very fluid motion from Boston Dynamics or UniTree, but it’s always in demos where it’s mostly scripted. Whenever you see robots operating in the wild it’s always very slow and stuttered motion. I’m guessing the control systems are just not reliable enough to guarantee that the robot recover from losing balance, and it makes sense to just have them work slow and steady with minimal risk of accidents. I also expect that as the use of such robots becomes more prevalent, control systems will improve as well and they will be able to move similarly to humans.

Another aspect of it is sensors. Humans have skin, and we can immediately tell when we come in contact with an object. It’s a trickier problem for a robot though since they mostly rely on visual or lidar data. I expect artificial skin and proprioception likely to be the next big innovations in robotics. If a robot is able to know the position of its body relative to the environment with a high degree of confidence, and able to sense the environment with its body, then it can move a lot more safely and reliably.