I think it's too soon to speculate about Kevin De Bruyne's future and his potential to play for one of the Saudi Pro League teams, he still on the golden age and want to spent his career with top European teams exactly under Pep Guardiola he still become regular players with Manchester City.
Agree. Since there is no official statement from the player, it is very soon to guess his future. I'm sure he prefers to stay in Man City as long as Man City needs him. Man City also will defend him because they have no player who has the same game play as De Bruyne. It is not easy to get a replacement for a main midfielder like De Bruyne.
I think he isn't in his golden age anymore. De Bruyne is already 32 years old, he will be 33 in June 2024. I'm not surprising if De Bruyne may begin to decrease his performance. Although he still performed well but he may get the problem with his fitness. We know he just recovered from a long injury. It may be difficult to recover totally.
Not really small with payment salary receiving from Manchester City, although Saudi Pro League teams will give more bigger payment I don't sure make excited for De Bruyne will play there and he needs right time before leaving top European teams.
Man City pays him with enough salary. Although he will get a higher salary in Saudi teams, but he will play in the league with lower level of the competition. De Bruyne must prefer to stay in Man City because he still can plan in the highest competition (EPL, UCL). When he moves to SPL, he will never have the chance to play in UCL.