Since ZorinOS 16 already comes with TouchEgg preinstalled, you don't install TouchEgg manually :)

Just copy and paste the line below in your terminal.

gnome-extensions disable [email protected]; mv ~/.config/touchegg/touchegg.conf ~/.config/touchegg/touchegg.conf.old; git clone https://github.com/NayamAmarshe/ZorinGestures.git; cd ZorinGestures; cp touch* ~/.config/touchegg;

That's it!

• 3 Fingers UP or DOWN: Switch Workspace
  
• 3 Fingers LEFT or RIGHT: Change Volume
  
• 4 Fingers UP or DOWN: Show overview
  
• 4 Fingers LEFT or RIGHT: Go Back and Forward

  [BROWSER ONLY]

  

• 3 Fingers PINCH IN/OUT: Maximize and Restore Window size
  

rm -f ~/.config/touchegg/touchegg.conf; mv ~/.config/touchegg/touchegg.conf.old ~/.config/touchegg/touchegg.conf; gnome-extensions enable [email protected];

_{^{kde,gestures,macos,kde plasma,touchpad gestures,linux gestures,linux touchpad gestures,macos theme,linux gestures touchpad,touchpad gestures ubuntu,kde connect features,linux multitouch gestures,add multi touch trackpad gestures on linux,elementary os gestures,fusuma gestures,trackpad gestures,gestures elementary os,kde plasma customization,mouse gestures,kde connect ubuntu,linux touchpad gestures like mac,touchegg gestures,gestures on ubuntu,linux trackpad gestures,trackpad gestures linux, linux,linux gestures,linux touchpad gestures,gestures,touchpad gestures,linux multitouch gestures,linux gestures touchpad,linux distro,add multi touch trackpad gestures on linux,linux help,linux 2019,linux tutorial 2019,mac trackpad gestures,trackpad gestures,linux gesture mac,gesture su linux,linux gesture,linux trackpad gestures,trackpad gestures linux,macbook-like gestures linux,touchpad gestures linux,swipe gestures for linux,linux touchpad gestures like mac,touchpad gestures linux mint}}