Mine just arrived and of course I rushed to try it out. My verdict is you'r right it is amazing. Why is it not generally known or am I completely out of the loop? Thanks again for finding this.
I'm a little confused by "This cable is only compatible with 20V Power Delivery chargers" that's int he description, yet earlier it says up to 65W
None, think of electricity like water, your device is the tap and the charger the pipe. If you only open the tap a little, you get a little water even if the pipe could carry much much more.
Power Delivery will also ensure devices are not overcharged and will only provide the necessary amount of juice needed.
Yes, amazing isn't it? I use similar (other brand) for my old Surface pro 4, using 61W and USB C cable.