Seemingly every character has an "integral role" in this movie. Captain America is the main character, we got Falcon as his sidekick, Bucky is a major player, Iron Man playing antagonist, Zemo as the main villain, Black Panther's apparently important... how much do you really expect Spider-man to be in this?
I'm guessing at least one scene as Peter Parker at his home with Aunt May, and one fight scene as Spider-man.