#OpenSSL will get the now standardized post-quantum cryptography algorithms (ML-KEM, ML-DSA, SLH-DSA) in 3.5 (planned release date is 2025-04-08):
https://openssl-library.org/post/2025-02-04-release-announcement-3.5/
This will include X25519MLKEM768, and will be enabled and preferred by default:
https://mailarchive.ietf.org/arch/msg/tls/g9sagkuAu8KlWpmJ30YdXbga5Xg/