How to Use the PS4 Controller Touchpad on PC with DS4Windows? - TechWiser
Use Touchpad of DS4 controller as a button (PC) : r/RocketLeague
Amazon.com: DarkWalker ShotPad FPS Touchpad Game Controller for PS5 / PS4 / PC/Steam/Xbox One/Xbox Series S|X : Video Games
Amazon.com: SZDILONG Wireless Controller for PS4 Gamepad Compatible with Playstation 4/Pro/Slim/PC,Double Shock/Bluetooth/Touchpad/Stereo Headphone Jack/Six-axis Motion Control/Charging Cable : Video Games