Well, maybe he's got some secret mission that he doesn't want the Avengers to interfere with. You know, like protecting a particular person or some crucial information that he thinks the Avengers might mess up if they get involved.
The focus on different aspects of Peter Parker's life. For example, it might explore certain relationships more deeply compared to other versions. And the visual style could be distinct, like how they show Spider - Man's web - slinging and movements.