p2p and CEX have diferent properties.
Binance is a CEX but it has a P2P market and just as the other exchanges, they have their spot market and at the same time a separate market for P2P.
Some CEX have p2p, but they demand KYC.
Well, you got it. This is the only difference between those that have been mentioned and the ones that we're saying to you about being on CEX and P2P.