While a friendly match doesn't guarantee anything, it's crucial for Manchester United to build their mentality for next season.
Overall, there aren't many changes to the Manchester United squad for next season, so I don't think their performance will be much different unless Amorim can maintain consistency.
Menatally Man Utd this year will be better than last, but they didnt sign any significant player yet, so I think that they will be better positioned but not anywhere near the Europa postion. My best guess is maybe 10th but maybe that is also too much for them. They are now in trouble because they are slowly droping out of the saw call "Big Six".