Talking about Neymar's future career I think that even Neymar himself does not want to think more about this especially with the crazy salary conditions in Arabia during his contract then indeed in the end there is one more Brazilian player who disappeared from the radar after Hulk, Oscar, Pato and Willian who previously took a path almost similar to Neymar.
Going back to reviewing Neymar, if you see Neymar interview regarding his reasons for playing at Al Hilal, will make us think again that it's not just about the big salary, but the attractiveness of Ronaldo and several other players like Benzema and Firmino also made him want to play in Saudi Arabia. So it's quite clear in this case that Neymar indirectly said that he was motivated to be able to fight against the star players who had already moved there. You can look for it yourself regarding the interview that Neymar delivered.
But if you're interested, I'll watch it here:
https://www.youtube.com/watch?v=pQn_Xrs9spEIMO, a very classic excuse made by Neymar. that in truth, Neymar doesn't have many options because not many top clubs really want his services. there are several factors behind it, apart from Neymar being prone to injury, a high salary, it seems that PSG are reluctant to let him go for an easy price. then, Al Hilal also offered a proposal with a very high salary.
Previously, this club really wanted Messi and some very famous star players. however, their attempts always fail. seeing the situation that was happening within the PSG camp, Al Hilal tried to offer a proposal for Mbape but the player was not interested in the offer. finally, they tried to get Neymar and promised a much higher salary. Not many choices, in the end Neymar accepted the proposal. regarding the questions from the interview session, which you share in this link.
To be honest, I didn't take it seriously. because, Neymar actually still deserves to play in the highest commission. it's just that, he has a problem that is prone to injury. Al Hilal, offers a fantastic salary. then, in the end he did not refuse the offer. the point is, it was the salary that attracted Neymar. plus, not many European clubs are seriously interested in using his services.