Onana to Man UTD is something the united fans are happy about but with last night performance can they ever say they're happy to see him let go 2 goals into his post? Sometimes we feel what we have is the problem sometimes it isn't, Onana is one good goalie every team would love to get but can he surpass David de Gea? They let the skipper go thinking they can get a replacement, as it is the problem is not the goalie I feel is the defense line, they can't protect the goalkeeper and the keeper can't rely on those back 4.
So I think David de Gea is a defender on his own and he doesn't have that assurance that he have defenders to protect him, as for Onana he better think of a better way to follow those defenders if not he'll be a disappointment to himself and the fans.
It's too early to judge Onana let alone to compare him with David De Gea who has been at Manchester United for a very long time, every new player definitely needs adaptation in his new team and it's true that Onana's first appearance was a little disappointing with the Manchester United team but I still don't doubt it, he is a quality goalkeeper and I'm sure he will definitely show it later when the season is underway or in the next few matches with Manchester United.
IMO, it's not a matter of being able to surpass De Gea or not, but how Onana makes the saves properly and that is his job. after all, this was a friendly match. after all, it doesn't have a very significant impact on the team as a whole. both teams, did not play to their full strength. because it was feared, they would be injured.
Talking about Onana, even though in the match against Madrid he conceded 2 goals, he also made 3 saves, 51 touches, 39 accurate passes and several other statistical records, referring to several sources that became my references, Onana's statistical value is quite good. not even bad despite conceding 2 goals. Onana has done a good job, Madrid's first goal, Onana lost one step out to keep out a flick from Bellingham. but at least, referring to the available statistical data. Onana plays as it should.
IMO, United fans don't need to worry too much, that this goalkeeper has a capacity that doesn't need to be doubted. defeat against Madrid, did not make him despair. it can actually encourage him, so that he is even better. after all, Onana also needs chemistry with her teammates. So, I think all of this is normal.