As Manchester United stands now, the team won't even qualify for the Europa League. The team is at the last position in the points table. Manchester United team failed to win the away match against Galatasaray. It is highly unlikely that they will win the next match against Galatasaray. On the other hand, they will play against the mighty Bayern Munich in the last match. Manchester United will not win this match either. Bayern Munich will top the group or its table. And in second place will be Galatasaray. Copenhagen is more likely to be in third place. This team is playing very well. Manchester United should now fully focus on the Premier League and try to stabilize their performance.
If Manchester United fails to qualify from the group phase and cannot even get third place in group A, of course that is very disappointing and also quite embarrassing for a team like Manchester United because in that group they are predicted to qualify with Bayern Munich because of course it will be different if they are in a difficult group like group F.
However, my prediction is that if Manchester United don't make it through the group phase, at least they will get third place to play in the European League playoffs, and if it is true that they fail then Erik Ten Hag's fate will be very threatened at that club, there is a big chance that Ten Hag will get fired and ultimately Manchester United, like several seasons ago, continued the competition with a temporary coach before finally choosing a new coach.
There is a real possibility that United could be fully gone, they could finish the group fourth place as well. They are going to play against Galatasaray, who they lost to before at their home game, so it wouldn't be the most shocking thing in the world to lose to them at away game too, and they are going to play Bayern as well, which they could definitely lose too.
That is a possibility and could happen, Galatasaray will play both, and if they win United and tie Copenhagen, and Copenhagen loses to Bayern and ties Galatasaray, that means United will be fourth and gone. I am not saying this will happen, there is of course still a chance that they could go up, but that doesn't mean that they may not as well, there is a very real possibility that they could be fourth and gone, and that's not good for them at all.