Synaptics provides the linux touchpad driver.

Documentation

man synaptics https://man.archlinux.org/man/extra/xf86-input-synaptics/synaptics.4.en

Locations

/etc/X11/xorg.conf.d/*.conf configure touchpad

synclient               # show all options, and settings

synclient PalmDetect=1  # set an option

synaptics install

synaptics configuration