Is dYdX fully decentralized?

Could you elaborate on the level of decentralization achieved by dYdX? I've heard conflicting reports about its architecture and whether it truly operates as a fully decentralized platform. While some claim that it utilizes decentralized technologies like blockchain, others argue that its centralized components limit its decentralization. As a professional practitioner in the field of cryptocurrency and finance, I'm interested in understanding the specifics behind dYdX's decentralized capabilities. Could you clarify if dYdX offers the same level of decentralization as other prominent decentralized exchanges, or are there significant differences in its approach?