It isn't the same thing with Mbappe's situation. Ronaldo and Benzema have ended up with Saudi Arabian teams because they are very old now. They just wanted to have the final years of their careers by making tons of money for themselves to secure the future of their families. If those teams didn't pay insane amounts of money to them we wouldn't have seen any stars like these going there.
But when it comes to Mbappe he is a very young player now. He is one of the best players in the world right now. He would prefer to be a part of a winner team first of all. But still money is a very important factor for him of course. PSG aren't successful in the Champions League but they offered an unbelievable kind of contract to him.
I don't know Arsenal can or would like to spend hundreds of million euros to make a signing like this in the first place. Even if they do Mbappe wouldn't still choose Arsenal as long as Real Madrid make the same offer.
I agree that it is not the same thing, but I wouldn't be comfortable enough to say "never", I would say it would not be impossible but yes it is unlikely that part is true. I am expecting him to play in a different club one way or another but I am not expecting him to have something that is in the premier league.
Even though there are a lot of rumors of him being in premier league or have a lot of interest from clubs there, I still think that he will either stay at PSG (which looks more and more likely everyday) or he will leave for Madrid, those are the two only options in my mind. But that is odds, the odds are he will be in either of those clubs, but it doesn't make any other team impossible, it just makes it unlikely and would not say "never" in that sense.