Can you buy crypto on OpenSea?

Could you please clarify for me, is it possible to directly purchase cryptocurrency on the OpenSea platform? I've heard it's primarily known for its NFT marketplace, but I'm curious if there's a way to conduct cryptocurrency transactions there as well. Is there a specific section or feature within OpenSea that allows for the buying and selling of crypto, or do users typically use other platforms for those transactions and then utilize OpenSea for NFT-related purposes?