It is true that Napoli has changed their poor performance, and they were lucky enough to win the Scudetto this season, but I don't see Napoli as the favorite to win the Scudetto next season because if not for Inter Milan's busy schedule in the UEFA Champions League competition, Napoli wouldn't have won the Scudetto this season. In my opinion, Inter Milan is the favorite to win next season's Scudetto because they will want to make up for their mess next season.
Next season will be a tough season for Napoli to defend their title because Inter Milan is aiming for the title, and by looking at their good performance, it seems they will be able to get the title next season because as a team, Inter is more mature and disciplined, they also have an effective strategy, and have competed at a higher level. this makes them a strong team in Serie A and a strong candidate to win the Scudetto title.