The PS5 controller doesn't just work with the PS4, so you must pick up a Bluetooth adapter. This will usually come in the form of a USB device which needs to be plugged into the PS4. The adapter then ...

To use your PS4 controller on a PS5, connect it to the PS5 with a USB cable and press the PlayStation button on the controller.

Learning how to connect a PS5 controller via Bluetooth is an easy process to learn and it's a wonderfully straightforward ...