Remember that odds don't play the game but the performance of the team matters in every match, the odd favours Manchester United to win the game and since they are playing at home they can start their performance well after they played 1:1 draw in their domestic league with the new manager in charge of the team. Amorim will have no issues winning against Bodo today because he was a major contributor to the good performance of Sporting in the champions league so I think the result will tidy will definitely be in favor of United.
Facing an opponent that is not so tough and Manchester United also has the advantage of playing at home so that Amorim can make a difference in his second match as Manchester United coach. I am more optimistic that this match will be won by Manchester United because there are many advantages that they currently have. Amorim only needs to evaluate the front line and fix the back line to be more solid, when this goes well then I am sure Manchester United's appearance will be much more convincing to get a win, especially the opponent they face is not so strong so it will be a little easier for him to get a win.
I don't want to be too optimistic about the conditions that have occurred at Manchester United this season, because Manchester United is not 100% ready for the arrival of Amorim as a coach, maybe everyone believes that with Manchester United playing as the host, it is impossible for Amorim to achieve his first victory, it is possible that FK Bodø/Glimt will defeat Manchester United at their own home, so I am still pessimistic about this match because this match has not started yet, anything can still happen.
From the first match Amorin had with Manchester United, it's obvious that the players are not very for Amorin's strategy but I believe with time they'll pick up, all it just take is the willingness of some players to adjust to the new system and blend in with others who've adjusted already, players like Onana, Mazraoui, Mason Mount, Amad Dialo, have seriousness and could earn a spot in today's match. The frontline was very bad and Marcus Rashford despite scoring an early goal was looking so confused at come point and couldn't connect well with his players, maybe Amorin could adjust into a system that would give him full support from the players around him, he could play Mazraoui at the right wing where Amad previously played against Ipswich then move Amad forward to support Rashford and play Lukeshaw if fit at the left wing instead Dalot. Manchester United can't lose or draw this game, winning is must and the players needs to do more than their best to make it possible.