The Belgian Malinois is the breed that displaced the German Shepherd in most police and military roles, and it did so because it is lighter, faster, more heat-tolerant and more intense. Every one of those traits came from selection for work, and none of them switches off in a suburban house.
A Malinois needs a job, not a walk. Bite sport, detection work, competitive obedience, agility, herding, or serious structured training every single day. Two hours of running produces a fitter Malinois with the same unmet need, because the requirement is mental as much as physical.
Unmet, that drive turns into pacing, spinning, wall-bouncing, destruction, and in some dogs compulsive behaviours. Rescues in every country are full of Malinois surrendered by owners who were impressed by the police videos.
The Akita at 3/5 exercise and 3/5 energy is genuinely content with a decent walk and then lies down. In a household with a normal job and normal weekends, that difference is not a preference — it decides the whole thing.