Scrolling that exactly matches your fingers and has “realistic” momentum.
On a Mac I might scroll through an article by just sort of pushing it the right direction, removing my hand from the trackpad and then tapping to stop it at the right place. It’s very hard to describe these things because so much is muscle memory.
I just tried it on this Windows laptop, and it worked exactly as you described, at least in firefox. I pretty much never use a touchpad though, so I don't think I ever saw that before. If I did though, I can imagine coming to rely on it pretty quickly.
