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.
Onana has been with Man Utd for more than 2 seasons and should have realized that he is not a good fit for Man Utd. To save his career, going elsewhere is a way out, but who wants it? There is no one because Man Utd wants a high price, or another way is to ask him to be loaned out because of course with the arrival of a new goalkeeper and currently Amorim trusts Bayindir more, so Onana is only the third choice. I really feel that Onana's career will really stagnate if he stays at Man Utd for too long.