Is Pendle a Layer 2?

Could you please clarify for me whether Pendle operates as a Layer 2 solution in the cryptocurrency space? I've heard some discussions about its functionality, but I'm not entirely sure if it fits the definition of a Layer 2 protocol. Could you explain how Pendle functions and whether it indeed qualifies as a Layer 2? I'm interested in understanding its role in the blockchain ecosystem and how it differs from other Layer 2 solutions, if applicable. Thank you for your assistance in clarifying this matter.