Apart from that, only Messi, who for several years has always been competitor for Ronaldo, who we consider to be the best player of all time in his era, but sorry, I didn't think about Messi that far.
Maybe he will still be core player for Argentina if he really takes part in strengthening Argentina for the 2026 World Cup, but I not sure that in that competition Messi will still be able to play well according to exexpectations.
For Argentina itself is certain that they will get tickets for the 2026 World Cup competition or it could be said that Argentina has guarantee of qualifying for the 2026 World Cup.
When you are playing against much better opponents, you try to be better, you strive to be greater, but when you are "good enough", then you stop working too hard on your craft. This is why I believe that if Messi keeps doing this for 2 more seasons, then we are going to see him both older, and less caring and that would not be a smart way to go.