If you want to emulate your keyboard as a controller, you can do that with the help of the AntiMicro / DS4Windows or Rewasd tools. Install any one of those software, launch the application, map your keyboard keys to the virtual gamepad that is shown on the screen and save the changes. Launch the game and press the keys that you have assigned for the virtual gamepad and enjoy playing games on pc with virtual xbox 360 controller / dualsense controller.