It's very true, Inter is in the UCL, and will play Vida in another week, however I agree with you that it will take away energy from Serie A, while Napoli will be more rested and with more energy to focus only on Serie A, therefore the team for me will get much stronger and in better shape, Inzhagi's Inter is a team that has everything to win both tournaments, however consistency is something that the leading teams in these tournaments of all leagues are suffering from.
Inter does have a tighter match schedule besides having to compete in the UCL they will also face Lazio in the quarter-finals of the Italian Cup today, of course this will drain the fitness of the players, well here Inzaghi's ability is shown how he manages the team to be stable in undergoing this tight match.
On the other hand, Napoli is only focused on Serie A, this will be very beneficial for Conte to prepare the team for the big match next week and regain the top position.
In my opinion, apart from the fitness advantage, Napoli also has the advantage of playing at home and they must make the most of it.
Yes, it's true, of course, Inzaghi must do everything in his power to keep Inter's performance strong and of course Inter's match against Lazio in the Coppa Italia has of course now finished and Inter really showed their best abilities and in the end Inter won with a score of 2-0 and of course this made Inter advance to the semifinals and what is certain is that now Inzaghi must really prepare again to face Milan in the semifinals and of course now we'll see what happens later whether Inzaghi will be able to make everything run smoothly or not.
Yes, Napoli, who will face Inter at home, should be able to make good use of Napoli and what is certain is that if you look at the busy schedule, it will certainly be busier and Inter will definitely be more drained of energy. but of course we'll see what happens later, but what is certain is that Inter will definitely be enthusiastic in the next match and will not let Napoli shift their position, which is currently at the top of the standings with a difference of 1 point between Inter and Napoli, which will certainly make their match later a tense match. However, I think I will favor Inter to win that match.