Inter Milan losing the UEFA Champions League trophy to PSG last season won't have any negative impact on their performance next season because when Manchester City defeated Inter Milan in UEFA Champions League final, Inter Milan won the Scudetto in the following season. I believe Inter Milan will compete in the Serie A next season as long as their players are fully fit to play in Serie A.
Inter Milan is a good team as the team is always ready to cherish the new wins. In the last season Inter Milan was not able to win the UEFA champions league but in the same year they were able to win the scudetto so one lose and one big win did not affect them much. But now the team is ready to show their skills in the serie A and the champions league. And i personally think that the team will manage to make one big win to their name as the team has the great strikers and they have all of their key players. A team is able to maintain their position when they have all the talented players. Inter Milan is also a confident team as they trust themselves for every greatness.
Inter couldn't reach their goals near the end of last year's league season, but the initial and final successes they achieved are not ordinary. They lost the Scudetto and the UCL. This year, they'll try to win, and that's perfectly normal. When it comes to the Italian league, Inter has been the best team in recent years.