The concept of Peer-to-Peer can confuse newcomers in the industry. This is because they can be deceived to believe that what is done in centralized exchanges is P2P. Hence there is a need to always emphasize and educate newbies that the main workings of P2p is to facilitate Bitcoin transactions without any intermediary or middleman. It should be you dealing with another person directly which nobody in the middle coordinating or facilitating the transaction. Any centralized platform that brandishes a service as p2p is just offering centralized p2p.

Then DEP2P should also mean decentralized exchange P2P.