— I feel 2-finger scroll is easier than right-zone one-finger stroll… no need to locate the right zone.

I suspect the right-zone scroll has triggered accidentally, esp. for remote working.

— pointing/dragging  or scrolling (two-finger or one-finger) -> edgeMotion ..  When your finger(s) hit EdgeOfTouchpad, the momentum continues slowly but indefinitely

• Useful in dragging esp. I guess it’s better to restrict edgeMotion to drag only.
• Useful in large screen or slower pointer speed
• However, when my palm touches the edge, I often see the pointer move continuously 🙁 Sometimes the page also scrolls.

— scrolling (two-finger or one-finger) -> coasting.. After you lift your fingers the scrolling comes to a gradual stop just like a ball. You can stop it immediately with a tap (prefer one-finger)
— pointing -> momentum.. After you lift your finger, the pointer continues moving for a while. You can stop it immediately with a tap. This feels like rolling a ball.
I disabled it becasue it inteferes with slow, precise motion.

I think it is OK in fast motions.

— vertical scrolling with one-finger on the right zone -> ChiralScrolling .. when your finger hits the bottom of touchpad, you can circle clockwise to continue the down-scroll, more natural than The traditional approach — use the same finger to swipe down again in the right zone.

• interferes with horizontal scrolling
• requires some practice. I think each circle must swipe through the right zone.