~/.config/touchegg/touchegg.conf (https://github.com/JoseExposito/touchegg)

touchegg.conf.xml

<!--

  TOUCHÉGG CONFIG BY @SK22

  * 3 finger swipe gestures are managed by GNOME 40

  * 4 finger swipe up/down maximizes/restores the window (using Super+Up/Down)
  * 4 finger swipe left/right navigates backward/forward (using Alt+Left/Right)

  * 3 finger pinch inwards closes the window (using the Touchégg action)
  * 3 finger pinch outwards cycles through windows (using Super+Tab)

  https://github.com/JoseExposito/touchegg
  https://gist.github.com/sk22/0a05c9a36e5ae9ea1f53736d80cad3b1

-->

<touchégg>
  <settings>
    <property name="animation_delay">150</property>
    <property name="action_execute_threshold">20</property>
    <property name="color">auto</property>
    <property name="borderColor">auto</property>
  </settings>
  <application name="All">
    <gesture type="SWIPE" fingers="4" direction="DOWN">
      <action type="SEND_KEYS">
        <repeat>false</repeat>
        <modifiers>Super_L</modifiers>
        <keys>Down</keys>
        <on>begin</on>
      </action>
    </gesture>
    <gesture type="SWIPE" fingers="4" direction="RIGHT">
      <action type="SEND_KEYS">
        <repeat>false</repeat>
        <modifiers>Alt_L</modifiers>
        <keys>Left</keys>
      </action>
    </gesture>
    <gesture type="SWIPE" fingers="4" direction="LEFT">
      <action type="SEND_KEYS">
        <repeat>false</repeat>
        <modifiers>Alt_L</modifiers>
        <keys>Right</keys>
      </action>
    </gesture>
    <gesture type="PINCH" fingers="3" direction="IN">
      <action type="CLOSE_WINDOW">
        <animate>true</animate>
        <color>F84A53</color>
        <borderColor>F84A53</borderColor>
      </action>
    </gesture>
    <gesture type="SWIPE" fingers="4" direction="UP">
      <action type="SEND_KEYS">
        <modifiers>Super_L</modifiers>
        <keys>Up</keys>
        <repeat>false</repeat>
        <on>begin</on>
      </action>
    </gesture>
    <gesture type="SWIPE" fingers="3" direction="UP">
      <action type="GNOME_SHELL"></action>
    </gesture>
    <gesture type="SWIPE" fingers="3" direction="DOWN">
      <action type="GNOME_SHELL"></action>
    </gesture>
    <gesture type="SWIPE" fingers="3" direction="LEFT">
      <action type="GNOME_SHELL"></action>
    </gesture>
    <gesture type="SWIPE" fingers="3" direction="RIGHT">
      <action type="GNOME_SHELL"></action>
    </gesture>
    <gesture type="PINCH" fingers="3" direction="OUT">
      <action type="SEND_KEYS">
        <modifiers>Super_L</modifiers>
        <keys>Tab</keys>
        <repeat>true</repeat>
        <decreaseKeys>Shift_L+Tab</decreaseKeys>
      </action>
    </gesture>
  </application>
  <application name="firefox">
    <gesture type="PINCH" fingers="2" direction="IN">
      <action type="SEND_KEYS">
        <repeat>true</repeat>
        <modifiers>Control_L</modifiers>
        <keys>KP_Subtract</keys>
        <decreaseKeys>KP_Add</decreaseKeys>
      </action>
    </gesture>
    <gesture type="PINCH" fingers="2" direction="OUT">
      <action type="SEND_KEYS">
        <repeat>true</repeat>
        <modifiers>Control_L</modifiers>
        <keys>KP_Add</keys>
        <decreaseKeys>KP_Subtract</decreaseKeys>
      </action>
    </gesture>
  </application>
</touchégg>