Real Sociedad is an obstacle that Manchester United must be able to defeat in the last 16 of the Europa League this season, but Manchester United must be able to improve the quality of its players who are still fit at this time because I see that there are many Manchester United core players who are still injured so that is what will make it more difficult for Manchester United to achieve victory in every important match for now. The Europa League is a competition that Manchester United needs to focus fully on because from this path it will be able to take it to the Champions League next season if Manchester United can win the title this season.
Truthfully both teams are terrible this season. If we had the Real Sociedad from the previous season then I would be 100% sure they would eliminate this Manchester United.

But they are really bad now. They can't score goals easily and their defense is also average. I expect a really close matchup as a result.
At the end, I won't be surprised if Manchester United can't make it anyway. They are even worse this season crying for help.