It is really sad that a player like Lionel Messi after joining the PSG team left the expensive leagues and currently only plays in Ligue 1. I think if Lionel Messi had joined any other club he would have had more opportunities and could have done great things in a better league.
Ligue 1 is not a low caste league. Messi is playing professionally so far. he's playing well with what he can bring to the team. I don't think other clubs are willing to pay dearly for Messi at his age.
how bad is Messi's relationship with PSG and its fans? I think Messi will still play professionally for the rest of the season, if indeed in the summer Messi will leave PSG.
hopefully, Messi gets the best place in European clubs. even if he has to return to his former club.
The reason why most people think like that about the French League is mostly because except for PSG other teams will not put much investment to buy superstar players and that's why compared to many other leagues and especially compared to the premier league you see fewer interesting games, while in this season even PSG with all the investments they had could perform well enough.