On one hand that may be what Mbeumo feels but on the other hand I think it is a little bit for Manchester United to be able to bring in Mbeumo because of the competition from Tottenham who also want him so Brentford will certainly consider an offer that is profitable for them.
For Mbeumo, he also has to think about his future, Tottenham will compete in the UCL next season, that will certainly be an attraction for a player who wants to develop further while Man United is in a slump in the last few seasons which makes a player think more deeply about joining them.
Actually, the Tottenham team is also slumping at this time even though the team has managed to qualify for the Champions League through the Europa League last season. But Tottenham's condition itself is also not on a good track even though the team will be coached by a new coach next season and I am also not sure that Tottenham will last longer in the Champions League next season. However, for a player's consideration in order to make his career better, it is clear that there is and it will definitely be decided soon by Mbeumo in terms of where he will land next season.