I personally think that maybe Napoli can do better this time. They haven't been regularly joining the Champions League above all else. Therefore there was some lack of experience. They still did great last season of course. Because they made it to the quarter finals. However they couldn't deal with Milan obstacle despite a big effort.
But this time I will be expecting an even more competitive and aware team. They should be able to develop better strategies against especially the experienced teams of the tournament. When it comes to their group now I can just say it is quite easy for them. We should be watching a tough fight between Napoli and Real Madrid for advancing as the leader.
I also expect a better performance from Napoli this season. They managed to keep two of their most important players. With Victor Osimhen and Hvicha Kvaratshelia in the team, their offensive options will always be rich. I think they will beat Braga and Union Berlin with a little bit of comfort, but the games against Real Madrid will give us an idea about their position at the end of the tournament. If they beat Real Madrid and finish first in the group, they will raise expectations. Let's see how they will perform in the Champions League this season.