I think I disagree here, because Mbappe is too good to not be able to adapt to tougher environments or leagues. There is a reason that he is already in the top 20 of the Champions League goal scorer list and also scored 38 goals in 68 games for the national team. His goals aren't only scored against Ajaccio, but against the best teams in the world on a regular basis. I wish he would go to a club in the Premier League as I think that should be the place for him to improve even more.
Why would he choose the Premier League to improve as he has offers from a major club like Real Madrid. Which English Premier League team do you consider to be better than Real Madrid? Manchester City won the Champions League trophy in the last season Manchester City won the Champions League trophy in just one season but Real Madrid have not been better team. Real Madrid is the best team of all time. A better team for Mbappe than the English Premier League would be La Liga's Real Madrid and if all goes well, he will definitely come to Real Madrid. Mbappé himself likes Real Madrid very much and he will indeed fulfill his dreams one by one at Real Madrid. A move to Real Madrid could be a good decision for Mbappe at the moment.
Real Madrid would also be ok as there is at least some competition in La Liga, but if he thrives to be competing on the highest level possibly every weekend, the Premier League would be the league to go for him. In terms of the fiercest competition during a whole season, I think La Liga is the second best choice. This does not mean that I believe Real Madrid isn't a strong team. They are a strong team, but the Premier League is the best most competitive league. Seeing Mbappe play against Manchester United, Liverpool, Chelsea, Arsenal, Tottenham, I would like it. Real Madrid vs Barcelona and Atletico Madrid is also great to watch though.