> They instead drift up the sides of the computer, making the screen closer than the touchpad.

Hmm… if you did that on a new MacBook Pro, wouldn't drifting up the side leave your thumbs somewhere near the Touch Bar? Maybe Apple should add support for scrolling on its edges. Of course, that'd still be a much smaller target than the screen... on the other hand, it would work regardless of window positioning and even with an external monitor.

I'm only speculating, since I don't think I've gotten into that habit myself (not having a touchscreen).