I think Real really needs to sell Vinícius ASAP. His mentality doesn’t suit the club, and honestly, people are starting to dislike Real Madrid even more because of him. There was a rumor about him going to the Saudi Pro League, but that obviously fell through.
They should put Mbappé on the left wing and give young Gonzalo García a chance up front — the team would be much better off that way compared to playing with Vinícius.
They will definitely gain more by selling Vinicus for sure.
Mbappe is not usually good when they put him in that wing, he is known to be a player who is very good at the front right so switching might cause ineffectiveness for him because what he could do while on the right is not how he would do on the left side, right from when I started watching him, all the running he has been making with the ball has always been the right foot and even majority of his attempts is still the same Foot so actually he cannot handle the left wing. I understand your reason for saying Vinicius should be sold but the guy is doing a lot of work for real Madrid but if the club doesn't want him of course they should and besides Saudi is ready to welcome him.