I think that he is the best player for France and it was thanks to him that France got to the penalties in the final against Argentina this last world cup as without him France would have probably not even a shot on goal on that game.Things have changed now and despite the old players being usually captains now there is a new trend which the captain usually becomes the best player of the team and I think France has made the right decision to appoint Mbappe as their captain.He surely is one of the most talented players in the world and he fully deserve this title despite his young age.
He had a good performance in the world cup's final match but I think Argentina was just better than his team, however, he did all he could do regardless of that he is still young and there is a long way ahead for him and his team France, I think in 2026 is can get more experienced and maybe this time he can get the title with his team.