Inter seems very well focused this year. They are very ambitious for the championship and the players are united. Of course, the players who score goals attract attention, but I think they also play great matches in the defensive zone. They do not give opposing forwards a chance to score. Their goalkeeper is no longer a concern after Onana left. There is an Inter that is completely focused on the Scudetto.
Inter Milan seems to have a big target for this season, they want to win a trophy. I'm sure their main target (priority) is to win the Scudetto, UCL trophy is just a secondary priority. They are in a good condition to achieve their target because they have strong defense, creative midfielders, and productive attackers. If we compared their tactic in the previous season, Inter Milan can play more offensively/aggressively during this season. They may realize that they must improve their attacking if they want to perform better in this season.
Well, the departure of Onana seems not a big problem for Inter Milan. They have Sommer as a strong and experienced goalkeeper, it makes Inter defense be stronger. I even think they can be not as strong as now if they still keep Onana as their main goalkeeper. Also, they got good amount of money by selling Onana, it is a nice decision to send Onana to Man United.