Install Touchpad Gestures for trackpad in UBUNTU

#Install libinput-toolssudo gpasswd -a $USER input
sudo apt-get install wmctrl xdotool
sudo apt-get install libinput-tools

#Install libinput-gestures

sudo gpasswd -a $USER input
newgrp input
sudo reboot
libinput-gestures-setup autostart start

To play with configuration

The default gestures are in /etc/libinput-gestures.conf. If you want to create your own custom gestures then copy that file to ~/.config/libinput-gestures.conf and edit it. There are many examples and options described in that file.

References:

https://github.com/bulletmark/libinput-gestures