Linux touchpad like a MacBook Pro, May 2020 update 6 years ago
This is most likely a palm detection feature: https://gitlab.freedesktop.org/libinput/libinput/-/blob/mast...
Very annoying "feature" and the worst part is that it can not be disabled nor there are any plans on putting it behind a toggle flag, see https://gitlab.freedesktop.org/libinput/libinput/-/issues/19...
Luckily it can easily be patched on your own.