There are still many possibilities, but I agree if PSG have to lower transfer fee that man because the price now is not very possible for Real Madrid to sign him. Although Real Madrid has a lot of money, but the previous Bellingham transfer fee may have burden their finances. Actually, if another club brave to recruit Mbappe at current prices then PSG will be ready to let him go, if that happens Real Madrid will wait again to sign that man.
After all, Real Madrid wouldn't make a hasty decision if the transfer fee wasn't so reasonable for them for a player. And while waiting for the transfer fee to be lowered for Mbappe, Real Madrid can also monitor other players to get them if they really can't get Mbappe in the current transfer market. And which teams are starting to be interested in Mbappe apart from Real Madrid? Because a good player like Mbappe will usually be in greater demand by many teams if the price is not too high.
I don't think Real Madrid will get Mbappe under 150 million euros, but PSG will probably expect more. There are a lot of teams interested in Mbappe, but I really believe that in the end Real Madrid will manage to sign him. Regardless of the transfer fee, I just really believe Kylian Mbappe is a player who can really improve the quality of Real Madrid next season. We can expect to win the title next season with his presence, but somehow all the decisions will likely rest with Florentino Pérez.
I read some reports that Florentino Pérez would not buy more players in this transfer, so he said Real Madrid had finished buying players. Meanwhile, Real Madrid don't have a quality striker yet, so I hope he's not joking too much.