Bernardo Silva has so far not received any news from Manchester City about a contract extension, which has led to rumors of Bernardo Silva leaving the club. Since PSG have already lost some players, PSG will have a chance to sign this Man City player. PSG may not have much money ready for Bernardo Silva. Bernardo Silva won't join PSG if he doesn't get a good money offer from PSG.
According to your information Al Hilal can make big offer to Bernardo Silva to join Saudi League but I think Bernardo Silva will not go to Saudi League at the moment. If Barcelona are interested in signing Bernardo Silva, he may be able to sign Barcelona's interest. If he leaves Manchester City and joins Barcelona, his football career should not be bad for him.
Probably Manchester City are still evaluating their options and have not arrived at a conclusion whether or not they need to sell Bernardo Silva or consider him still an important player for them in the coming season else they would be making plans already to get suitable replacement for him. Barcelona and PSG are prepared to battle for who will get his signature this summer. It is up to Manchester City to decide if they will sell.