Have you heard of the news about Liverpool's possible offer for Mbappe in the near future? It is said that Liverpool will offer 300 million euros for him. I think PSG would be really willing to sell him in case there is an offer like that. Because even though PSG have to pay a lot of money to Mbappe in case of selling him early they will still be in a serious profit.
It is much better than letting him go without a transfer fee surely. In this case I assume that Liverpool wouldn't be the only team to make the same offer. Real Madrid have been monitoring his situation for a long time. I would expect them to meet the demands of PSG and Mbappe both undoubtedly.
In this case I don't think Liverpool's chance would be higher to sign him.
If this is true, I don't believe PSG will have any further comments to make because this offer is very generous, exactly what PSG wants, and mbappe will be happy to accept such an offer. However, I do believe there will be some issues because PSG and mbappe have agreed to stay for another year. However, I believe where a significant sum of money is involved, everything will settle down, so it will be good to see mbappe in another team very soon.
Real Madrid will be quite disappointed by this because they were the first to express interest in Mbappé in recent years, and Liverpool came up to seize the opportunity from them by spending a lot of money. I believe this will set up a rivalry between real Madrid and Liverpool.