Several other note-taking apps have this, but essentially, when the Apple Pencil is connected it is the ONLY input device for drawing and writing. This enables easier scrolling with just one finger (since that finger doesn't write anymore) and also causes less accidental marks with the finger.
Enable 1-finger scroll and disable finger writing when connected to Apple Pencil
in Penultimate Requests
Posted
Several other note-taking apps have this, but essentially, when the Apple Pencil is connected it is the ONLY input device for drawing and writing. This enables easier scrolling with just one finger (since that finger doesn't write anymore) and also causes less accidental marks with the finger.