https://wccftech.com/ps4-controller-wont-work-ps5-games/

Sony has provided additional information on whether current PS4 accessories and peripherals will work with the upcoming PS5.

In a new post on the official PlayStation Blog, Sony explained which peripherals will work on the company’s next-gen console. As many of you might have already expected, the existing PS4 DualShock 4 controller won’t work with PS5 games as Sony believes that the upcoming new titles for the console should take advantage of the new features of the DualSense PS5 controller, including haptic feedback. The DualShock 4, however, will work with supported PS4 games through the PS5’s backwards compatibility feature.