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