Not a terribly interesting game.
Neither team were really taking risks and neither team made it difficult for the other to contain them.
Juve - not unreasonably - spent long periods looking like a team playing an alien system. There was never any hint of cohesive team movement. It was all just hoping for Pogba, Cuadrado or Dybala to do something individually and none of them did.
Napoli, for all their big talk before the game, also played negatively. Hamsik played a very conservative game. That made Insigne easier to close down and that meant there was little prospect of good service for Higuain.
Both teams did what they had to do defensively without ever being under a great deal of pressure.
But for all that people will say Napoli were the better team or that Juve didn't deserve to win, Juve created the one chance in the game (Dybala's shot over). Napoli created nothing.
If you don't create any chances in a game, you can generally have few complaints if you lose it.