Mint Token in token2022 has name, symbol info, how can it? Does token2022 support metadata?

From my knowledge, Token2022's Mint account is don't have name and symbol info:https://github.com/solana-labs/solana-program-library/blob/6edf3ecc3f51a9f7a6faba9a1a4d30f1e4857e69/token/program-2022/src/state.rs#L22

And, I create a demo: https://beta.solpg.io/65d4bda7cffcf4b13384cf6b

then I got an Mint Token:https://solscan.io/token/EyWttuRYY5NdvdmiRmzENLZiUaVtsoGfhvonaBfWE8fZ?cluster=devnetwho's owner is TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA which is Token2020 program. And it does have name, symbol info. Isn't it violate the Mint struct in Token2020 program?

and, second question: what's the relationship of spl-token-metadata-interface and metaplex token-metadata program?