Is it possible to connect my old nvidia shield controller to steam games?

I have noticed that external keyboards connected to an Apple computer support the simultaneous pressing of 'Tab + W + Space' keys, but the in-built Apple keyboard does not. When I press the 'Tab + W' keys and then press the Space bar, the Apple computer only receives the 'Tab + W' events but not the Space event. Other combinations, such as 'Tab + A + Space', work normally. Can you please explain why this is the case and provide any solutions or advice? Thank you

I got a new MacBook pro a month ago (M2) and today is my first time pairing it with my PS4 controller. The pairing is successful, but my Macbook starts recognising my controller as my mouse. e.g. I can't choose anything with "X" in-game because it just keeps opening random apps on my laptop. I tried to turn off the configurations on Steam but it's still the same. How do I use my controller configurations in-game only and refrain my laptop from picking up actions? I used my controller for gaming with my old Macbook, and I never had any issues, the controller could only be used in games and Steam only.