Just like you, I think Bayern Munich will be the leader of group. I agrre with you Manchester United still has a chance to finish second in the group. However I don't think Manchester United will win their remaining four matches. For Manchester United to be second in the group, Copenhagen and Galatasaray must make a lot of mistakes. I think Copenhagen and Galatasaray will not make that many mistakes.
If you look at the two that have been played, of course it is predicted that Bayern Munich will be the leader of group A. In my opinion, teams like Manchester United, Galatasaray and FC Copenhagen still have the same big chance of qualifying for the last 16 of the UCL. . My prediction is in group A
1 Bayern Munich
2 Galatasaray
3 Manchester United
4 FC Copenhagen
Galatasaray should not be taken lightly, they managed to beat Man United previously. I'm also not sure that Man United can win the remaining four matches, in fact I'm more inclined to make Man United make more mistakes than Galatasaray.
There is no doubt, Bayern Munich will finish easily as group A winners based on the results achieved in the two matches that have been played. I doubt that Manchester United can accompany Bayern Munich to the round of 16, their inconsistent performance makes their chances very slim.
Galatasaray only needs to make Bayern Munich fail to get full points when they visit their home ground, the good performance shown by Galatasaray in the domestic league must be maintained to frustrate Bayern Munich. Galatasaray's chances are better than Manchester United, your prediction is very correct based on the quality of the team and the results obtained in previous matches.