I am looking at the System Settings => Input Devices => Touchpad but nothing jumps out.
On Ubuntu/Unity, it is obvious which setting to use when wanting to play around with "tap to click".
Thanks
as answered here
To enable the touchpad tapping permanently , copy the
50-synaptics.conffile to/etc/X11/xorg.conf.dthen edit it by addingOption "TapButton1" "1"cp /usr/share/X11/xorg.conf.d/50-synaptics.conf /etc/X11/xorg.conf.d/50-synaptics.confThe
/etc/X11/xorg.conf.d/50-synaptics.confshould be:Section "InputClass" Identifier "touchpad catchall" Driver "synaptics" MatchIsTouchpad "on" Option "TapButton1" "1" Option "TapButton2" "3"Reboot your system
in your case set TapButton1 to 0 to look like this
Section "InputClass"
Identifier "touchpad catchall"
Driver "synaptics"
MatchIsTouchpad "on"
Option "TapButton1" "0"