Comment 20 for bug 1922047

In Windows 10, with the Precision touchpad, unaccelerated scrolling deltas are used directly. In Firefox and GTK, they are not used directly, it seems. Also, the scrolling on X11 using XInput2 with touchpad is also unusable for me, same with GTK. Haven't exactly tested Wayland though, but for me, it is 1.5xish compared to X11.

I could manage the situation for Firefox as changing `mousewheel.default.delta_multiplier_x` and `mousewheel.default.delta_multiplier_x` from 100 to 30, and `mousewheel.min_line_scroll_amount` from 5 to 180. With deltas, I could manage touchpad scrolling speed usable, and with `min_line_scroll_amount` one, mouse doesn't be affected by the delta reduction command. These are my findings.