Brighton is a fairly dangerous opponent in the Premier League so your fear of betting on Manchester United when the match takes place at Brighton's home is a fairly right decision besides the Manchester United team which is still coached by Ten Hag. Because the match is a little more difficult to predict if we remember the reasons, especially Brighton also does not want to lose just like that at home against Manchester United. So you can bet on other matches if you still have doubts about betting on the Brighton vs Manchester United match.
Uncertain games like this should be treated with caution and don't pick any of them, Brighton and Manchester united has both done band on band on each other and their last five games doesn't look suitable to pick anyone them and moreover the season is just starting and both seems to be high right now on top of the table. I will go with over 1.5 if the odds looks reasonable or I will pick over 2 if there is as I expected atleast a goal from both teams.
Brighton on a normal level doesn't look weak but because the are playing home game with Manchester united, we should expect a fair fight to keep their fair share of yhe top 4 no matter how the Manchester United present their games to them, they will kick back unless they don't have the strategy to win this particular one agains Erik Ten.
I'm sure if you bet 1X2 it will be difficult to choose because Brighton is also not a weak opponent while Manchester United is still a lot in doubt especially Erik Ten Hag often experiences tactics that are easy to guess, therefore there are some bettors who are skeptical of the Red Devils.
For me both teams scoring is still very possible or a double chance but certainly the chances are small especially Brighton-Manchester United unless this is entered into a parlay will increase your odds.
Usually Brighton at the beginning of the season is always fierce, so this needs to be watched out by Erik Ten Hag they have the speed of great players, it could be that Manchester United players will find it difficult to score goals.