Hmm, I wonder if this is actually an issue with tap-to-click not getting disabled when the disable touchpad while typing setting is on in GNOME and/or the StarLite firmware.
I’ve just re-enabled the trackpad but turned off tap to click and I don’t seem to be seeing the problem (and the mouse cursor does disappear while typing, which is did before too).
Hmm… I’ll update the issue and fingers crossed they’ll be able to fix it for tap-to-click too.