I am not surprised if he accepts the offer from Al Nassr because I am taking into account his current positions in A Madrid and France. His career recovers in A Madrid but he no longer belongs to best players in Europe. The same in French team as despite of his contributions for the team, the captain arm band was given to Mbappe. Generally Griezman is old too and like Mane, Henderson or Fabinho, nothing is wrong if Griezman takes advantage of last seasons in his career to play in Saudi Arabia and get more money.
When a player like Griezman begins to see competition in the European arena getting more and more difficult and many young players appear to attract attention, of course for him getting an offer from the Saudi Arabian club makes even more sense. In Europe, Griezman has proven to be the best player, but in the future there is absolutely no guarantee. Now, by looking at the situation and conditions in Europe, which are getting narrower, Griezman has to think realistically because somehow the opportunity to shine again is quite rare. Griezman only needs to make peace with the situation at the club or indeed make a decision to go to the Arab League immediately.
Griezmann is quite a talented player. But he is not a regular scorer. He still managed to score 15 goals in La Liga last season with Atletico Madrid. And 38 appearances in La Liga. He played well enough. But he is about 33 years old. Although he has played well enough with Atletico Madrid, it is unlikely that he will play for a bigger club in the future. And so if Griezmann gets an offer of big wages from a Saudi club, I think he should go to Saudi. He can earn a lot of money from Saudi clubs. Still, Griezmann's fitness is good enough. He can easily play 2/3 seasons in La Liga.