I've heard the same news about Mbappe being in talks with PSG to extend his contract. The French striker is reportedly negotiating his renewal with PSG, although I couldn't find a reliable source for this information. Mbappe has already expressed his interest in staying at PSG for this season only and leaving as a free agent in 2024. Despite various reports circulating, my expectation is that he will stay for just one more season as following the contract.
I got the impression that these rumors are being spread by representatives of PSG to put pressure on Mbappe (but it’s not clear due to what - the reaction of the fans maybe?). There is no confirmation of these negotiations, and judging by the fact that PSG once again announced the desired amount that they want to receive for Mbappe (250 million), this sounds like an invitation to all interested clubs (in fact, only to Real Madrid, but Real Madrid is not interested in such nonsense).