I just watched the video you post and how do we know the settings the engines are using ? for all we know the Newton physics are just using settings to keep the mesh parts more ridged while the settings on the other meshes are just using settings to make them more floppy this isn't showing you anything but whoever made the tests wants you to see and also I have seen a comment from the original poster saying the other physics engines disable physics until interaction and this is true! but this is because they have performance features that let you turn simulation off until interacted with because they are engines used in game engines and leaving things simulating all the time will cause so many issues in a game but I know for sure there are ways to change it so the physics always simulate on physx
