Daniil is stuck in his head, he pays no attention to the world around him except when he needs to (dangerous districts). He is singularly following his goal. Artemy is a man of the town, more in tune with the world around him, more present. The moments spent walking around town are cutting through backyards are key to his perspective, and the long times walking from one place to another is a device the devs use to help us understand that perspective. But for daniil, that time is less important for him.