Real madrid as before always surprises in the transfer window and I'm sure they will do it again in this transfer window. Nothing is impossible for Real Madrid to get Mbappe even though the player has given a signal that he will stay with PSG. But if there is no interference coming, I don't know if it's any problem of course it will make him change that decision. I think real madrid will spend a lot of money for mbappe but it will be done by real madrid because they need a proper replacement after Benzema leaves.
From their defense I think Real Madrid have a lot of players in stock. So their main focus remains on their forward line because that will be able to balance their strengths for next season. The midfield has been quite strong after signing Bellingham.
I think it's impossible for Real Madrid to get Mbappe in this summer transfer window. Real Madrid's management should have immediately looked for another striker to fill the void on the front lines. Firmino and Vlahovic might be the right alternative. Yes, the defense for the Whites is quite solid with the players currently available. But it must be remembered that, with his main rivals in La Liga, Barcelona, one step ahead in preparing his squad, it should be a warning to Perez to move quickly in the transfer window.