Important question because a microphone array (which exists on some phones, and things like home voice assistants) can be steered into the equivalent of a shotg

Important question because a microphone array (which exists on some phones, and things like home voice assistants) can be steered into the equivalent of a shotgun mic's pattern, or even more focused than that. It's just that an algorithm aims it toward the strongest signal, instead of the user aiming a hypercardioid mic manually. Either way, this is what reduces the ratio of reverberant room sound ("echo").