The situation of United and Sociedad is similar. We can see weak performance from both teams in their own league. However, both teams are trying to win the Europa League title. The first leg match was very competitive . Both teams tried their best to win.
The second leg match is Manchester United's home match. However, considering the home match, Manchester United team cannot be called strong. Because in the home match too, we have seen Manchester united team lose to weak team. So it is impossible to predict which team will win this match with certainty. Both teams have the possibility of winning. Betting on this match is risky.
Real Sociedad are a little better in La Liga and there is a very tight table, so they still have a chance to go up, between 11th and 7th place there is only 3 points. Manchester United are having a strange season, they are getting closer to the relegation zone, but despite this they played a very good game against Arsenal in a draw, so there is a glimmer of hope for an improvement in the game. Even though it will be a home game for Manchester United I think the teams have an equal chance of going through to the next stage.