So What Is A PreHash, And What Has it to do With Post Quantum Signatures?

The cybersecurity world is changing, and where the signature methods of RSA, ECDSA and EdDSA are likely to be replaced by FIPS 204 (aka ML-DSA Module-Lattice-Based Digital Signature Standard— Dilithium) and FIPS 205 (aka SLH-DSA (Stateless Hash-based Digital Signature Standard — SPHINCS+) https://medium.com/@billatnapier/so-what-is-a-prehash-and-what-has-it-to-do-with-post-quantum-signatures-bf7812cfa203