Does Coinbase have layer 2?

Are you aware if Coinbase, a prominent cryptocurrency exchange platform, supports or offers the functionality of layer 2? Layer 2, being an essential component in blockchain technology, can significantly enhance transaction speed and efficiency, potentially lowering costs and improving scalability. As an experienced professional in the field of cryptocurrency and finance, I'm curious to know if Coinbase has integrated layer 2 into their services, as it could have a significant impact on their users' experience and the broader adoption of cryptocurrencies.