The lighter duty versions like the one above have one telescopic friction anti-sway bar and does not transfer load to front tires of tow rig.
Most dual anti sway hitches have torsion bars that lift the rear of the truck/trailer connection and preload the weight onto the front tires of the truck. They have chain links that cam over and preload the torsion bars, much more effective than the single arm versions but not as user friendly