Overall, Brentford's performance is far below Manchester United's, so they have a fairly small chance of getting points in this match.
In their last 5 matches, Brentford never won, they lost 4 times and drew 1, indeed Brentford's performance in the second half of this season was really so bad that Manchester United, who were competing to get into the top 4, made it possible to achieve the final victory. this week at home to Brentford.
Manchester United as usual can be consistent but can also be more messy, the stability of this club is difficult to measure, Ten Hag often changes formation so it depends on what tactics will be applied in the match against Brentford. On paper Manchester United is superior but it is not a 100% guarantee that they can get 3 points. Brentford also needs to win because several matches they have played have been wasted. Therefore Brentford opportunity to play at home is the only way to beat Manchester United. Both teams can score goals, but in my opinion the final result is quite small, even a draw is reasonable.