I found that when I upgraded from libinput 1.9.4-1 to the latest 1.10.0-1, the edge scrolling on my track pad becomes jittery as if it lacks hysteresis. I am using an x86_64 system and running the gnome desktop with Wayland. I think there is a bug, because when I downgraded back to 1.9.4-1, edge scrolling works fine again.