Giant Schnauzer

I’ve heard that Giant Schnauzer is a working breed and such requires some amount of exercise or troubling behaviors may occur to relinquish that bored state they may have. A good jog or a let loose in a park with other dogs and maybe a water source will give the owner a well-mannered and tired friend coming home. Can anyone please tell me more on the breeding and also the temperament and its activities? It be great if I get the facts. Thanks in advance!!!