Wow, that sounds terrible. I don't seem to have any of those issues on Linux with the libinput driver, though I seem to recall that something wasn't quite right

Wow, that sounds terrible. I don't seem to have any of those issues on Linux with the libinput driver, though I seem to recall that something wasn't quite right with the touchpad a few years ago when I got the 9333 when using the older (now deprecated) evdev driver.