It doesn't make a difference... 95% of these players will not be good enough for the first team anyway, so the players that are, extremely talented and can play multiple positions.
The purpose is to get them ready for first team football, not play a certain formation. The players the manager feels are ready, train regularly with the first team and formation anyway, so its not a big issue.
That depends, if the winger is creative they can become a 10.. defensive, they can become wing backs.
Its strange because its Amorim right? but how often do youth players come start in their favoured position? Foden a 10, played on the wing for City.
Greenwood a CF was primarily a RW when he broke in.
Lewis Skelly at Arsenal is a CM playing LWB
Saka broke in at LWB
Nwanyeri broke in at RW not 10.
So I dont see this big issue.