Is Kraken a CEX or DEX?

I'm curious to know, is Kraken categorized as a Centralized Exchange (CEX) or a Decentralized Exchange (DEX)? Given the complex nature of cryptocurrency exchanges, it's important to understand the distinction between the two types, as they operate fundamentally differently. CEXs are often seen as more centralized and have more regulatory oversight, while DEXs aim for decentralization and user autonomy. Could you clarify Kraken's position in this spectrum?