I don't think it would be a wise decision for Bryan Mbeumo to make a transfer to Liverpool because he won't be guaranteed a regular football instead he should favour a move to Newcastle where regular playing time will be guaranteed. Manchester City, Liverpool and Real Madrid are all aiming to sign Florian Wirtz
Yes I also think is not good for Bryan Mbeumo to be transferred to Liverpool because is not even about playing well on his current club is about competing and making yourself relevant to the club since he is a midfielder and is a very tough position to handle and currently Liverpool have Alexis Mac Allister, Ryan Gravenberch and few more others, so Bryan Mbeum chance is very little to succeed in Liverpool because midfield is one of there strength.
So actually going for your suggested club is good because in Newcastle United Bryan Mbeum will be as good as he is in Brentford or possibly play more better, those are the things he should just think about because I understand that most players always go for clubs that already have a high reputation and record forgetting what they could go through if going there. However between him and Florian Richard Wirtz Liverpool will choose Florian Richard Wirtz because he is a strong midfielder for Bayern Leverkusen and he is on the same or higher level than Alexis Mac Allister and Ryan Gravenberch.