De Jong is playing very well right now. I think the reason why he didn't leave Barca was because of his love. This could be an expression of his love for Barcelona. Also, if he goes to Manchester United at this point, it will take him a long time to adapt and there are doubts whether he can play in the first XI. These are my personal opinions.
I agree that De Jong has love for the club and that will be the fundamental reason why he decided not to leave in the summer, he wants to play for the club but wants his wages owed to be paid, in my opinion it was a wise opinion to stay back at the club where he already build a fan base and good relationship with the players and coaching staff already. THere he feels at home and will play better.
De Jong didn't go to Manchester United because of any love for Barcelona. There is nothing like love, at that De Jong did was for himself and his interest. He felt that he needs to play champions league football to be more recognised in football and another thing is Barcelona technically held him back with buying off stories that Manchester United will pay. He is a good player and he is having
In the transfer process, the players themselves play an important role. As happened to Frenkie de Jong where Barcelona and Man United had reached
an agreement on a price, but because De Jong is still happy playing for Barcelona, finally De Jong refused to move to Man United. Therefore,
until the transfer market closed, De Jong still remained in Barcelona, because both Barcelona and Man United failed to persuade De Jong to move.
After all, De Jong's contribution to Barcelona is quite good, so it's a distinct advantage that Barcelona actually has a player like Frenkie de Jong.
And also Man United have got Casemiro, so De Jong doesn't need to leave Barcelona. I am very happy if De Jong can finish his contract at Barcelona,
I am sure De Jong will help Barcelona win trophies this season.
To move from Barcelona to Manchester United at the moment is clearly a downgrade in terms of quality. Furthermore, the fact that players like Robert Lewandowski are coming into the Barcelona team makes it really difficult to convince a player to leave the club. In my opinion, De Jong should be able to handle it quite easily.
In addition to this, you can see some highly talented players coming into Barcelona as well as the fact that Barcelona will be playing in the Champions League while Manchester United will not. Hence, I do not see any reason for him to downgrade himself by going to Manchester United. It is evident that he is a highly skilled player and I think he will contribute a lot to Barcelona's success story in the future.
If Barcelona is able to bring in Silva, then they can sell de Jong to save money, otherwise, it would be quite unnecessary for them to sell de Jong.