As I said before, there are rumors about Arda Güler, and yet this is not confirmed by anyone anymore. All we know is that Mourinho wants to hire this player for Fenerbahçe after the other team in this league hired Osimhen. Now Fenerbahçe doesn't want to lose the race, and they also want to improve the teams.
When Güler joined Real Madrid, he couldn't perform well in the first days because of injury, but he improved over time. Now, I don't think Real Madrid wants to lose this player, considering his age and talent. Maybe they will just get Güler on loan.
Yeah Real Madrid also wants to keep Arda Güler because he is very useful when he gets the chance. He is proving his quality nearly in every chance he has. Ancelotti just doesn't want to rush things by trying to make him a regular in the starting lineup yet. In the positions he can play, there are really tough opponents for him so he always needs to work hard.

Frenkie de Jong is still not fully recovered... And he is making tons of money which is going up to 25 million euros a year with bonuses. He said that people were wrong and he was actually making much less than that but I don't know.
https://www.capology.com/player/frenkie-de-jong-35562/Isn't it bad to pay this injury-prone player this much money?

I mean he is talented okay but he can't play regularly during a season. The team can't get enough efficiency from him comparing to the money he earns. While Barcelona is trying to raise funds, I think they should consider selling him or cutting his salary seriously.