I agree with you that of the three players between Rodyrgo, Vinicius and Mbappe, only Mbappe has really looked so brilliant with the achievements he has achieved, at the start of his career Mbappe won the World Cup with France and became the best young player.
After that, he played with PSG and won many Ligue 1 titles or the French Cup, and only the UCL they couldn't get, so Mbappe decided to leave PSG so he could get title that he couldn't yet achieve.
Real Madrid will be Mbappe next target team and with Mbappe joining Real Madrid will definitely have much better squad, they will have strength that is really difficult for other team to match.
For now, Real Madrid has managed to have several titles and has the potential to win the UCL, and having Mbappe next season will make it much easier for Real Madrid to win every title, including the UCL.
Moreover, Mbappe presence is also big advantage for Real Madrid because of course Mbappe can win several individual titles that can support his name as Real Madrid player.
In this season's game, Real Madrid has been considered the best team so far based on the team's incredible players that have performed excellently, which is why I strongly believe Kylian Mbappe ought to be among this lot, as he has been a great player even winning the World Cup at a young age and also lifting significant titles and awards for himself except the Ballon d'Or of which I am most certain he can claim for himself by joining the Real Madrid team.
At the age of 19, Mbappe won the World Cup with France thereby earning the title, the best young player at the start of his career, this evidently making him a brilliant and incredible player compared to the likes of Rodyrgo and Vinicius. Later on, he joined PSG and although he eventually left to pursue greater heights, while with the team, they won many Ligue 1 titles and the French Cup. As of now, Real Madrid have won several titles and Mbappe joining the team would increase their chance of winning the UCL and much more titles.
The Spanish side is filled with young, vibrant players eager to go for and secure trophies with a good managerial support too. This is actually an atmosphere that'll be conducive enough to receive and accommodate the French star. Mbappe knows that with Madrid, he's set out to do even better than he's already done. There's still a more to come from him. He just needs to be in the right team and squad at the right time.
For European football, there are actually two of the best team, not only Real Madrid but also Leverkusen, which this season has performed very satisfactorily and it is very rare for team to be able to achieve the achievements that Leverkusen has achieved.
Next season they will be in the UCL and of course we can see much more interesting competition because Leverkusen is not team that can be underestimated at the moment, what more, next season they will still be with Xabi.
Returning to the discussion about Mbappe going to Real Madrid, Ancelotti team has prepared quite large amount of money to bring in Mbappe even though he will come on free transfer.
Real Madrid really have pretty good strategy because they refuse to sign early and this is the best way to get players without having to spend lot of money in buyout deal.
Everything has been clearly guaranteed and if there are no problems or dramas that occur at the end of the season, next season Mbappe will really wear the Real Madrid jersey and become team capable of creating an era of power.
In fact, there are several names of young players who are associated with PSG new era after Mbappe departure, but this is unclear and there is no certainty so it may still be just inaccurate news.