You missed something, Bellingham didn't score a goal but he scored an assist for Vinicius, so statistically Bellingham contribution is very clear. I think this score proves that in the match against Dortmund without this assist, Vinicius would not have scored a goal. Regarding the arrival of Mbappe, this will create more balance. Just imagine that Vini, Bellingham and Rodrygo can win trophies, especially with Mbappe, it makes sense that Real Madrid has a bigger chance next season.
Bellingham has played a big role in Real Madrid's number of goals this season and in terms of assists even though Jude is not a front player like a striker. Bellingham's huge contribution is known by everyone since arriving from Dortmund. His assist to Vinicius in Real Madrid's second goal further established him as a figure who contributed in the final match.
Mbappe's arrival is good for increasing competition for Real Madrid's front position. But unfortunately Mbappe is not a player who is purely an attacker, but more of a winger. The competition I mean is with Vini and Rodrygo. One of the two will be eliminated if Don Carlo still sticks with the formation used for Real Madrid this season. The most likely to be eliminated is Rodrygo.
Speculation about whether Rodrygo will be expelled is still uncertain, because he has confirmed that he will stay. Maybe in the future Ancelotti will carry out several experiments on Rodrygo to find a new formation composition. In my opinion, Real Madrid doesn't need to let Rodrygo go because it's just a matter of position that can be rotated at any time. Whatever the position, it comes back to the player. If he is able to reinvent himself by learning to adapt to Ancelotti rotation, that would be even better. However, if you stay in your current specialist position and don't want to develop then inevitably there will be sacrifices. So instead of being kicked out of his current position, it is better to adapt to what Ancelotti implemented for the good of Rodrygo at Real Madrid.
Funny though, Ronaldo isn't only the world class player in the Saudi league, Karim Benzema, Neymar, Riyad Mahrez, Moussa Dembélé and Sadio Mané are all in the Saudi league remember, though Liverpool wouldn't allow Allison to leave anyway because if they do it will cost them so much so I agree with you that he isn't going to Saudi league and since Fabrizio Romano has made a reliable confirmation about Allison not joining the Saudi league, let's just accept it the way it is.
Allison still deserves to be in Europe, but now his fate at Liverpool must be certain. Does Allison not fit Arne Slot criteria or is Allison herself uncomfortable? Meanwhile in my opinion at his current age, his productivity in goalkeeping still has great potential. Going to the Saudi Arabian Club will only close his future career and it will be difficult to return to Europe. As experienced by Benzema, Allison must really consider his options.