Andre Onana is just under pressure, this one of the reasons he's not exploring and succeeding in Old Trafford. When he was in his previous clubs, nobody expected much from him because there have been divided attention to the players because the goalie is only present to do his best keeping saves but in Old Trafford, they expects every goalie to be at their best, besides he was fulfilling the shoes of David De Gea who everyone thought to be 3x times better but it reverse is the case.
Manchester United will struggle this season base on the unpredictable rigid foundation of Ruben Amorim. How can a manager have competent players and new signings and still been unable to accomplish top results. Anyways, let's give him time just like we gave Erik Ten Hag but ended up doing nothing for the club.
That is very honest take on situation at Manchester United and you hit on some key points. Yes Andre Onana is under much of pressure as expectations for goalkeeper at club like that are huge and he is also being compared to fan favorite David De Gea. It is frustrating to see team struggle for results despite having good players and new signings. And according to comparison of past seasons it raises big question of how much more time club should give him.