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There were a lot of pqcrypto candidates, and several of them were indeed thoroughly broken, prey to the fearsome cryptanalyst's laptop left running over a weekend

NIST standardized Kyber and Dilithium, and for now at least, they seem to be holding up. I'd still want to do hybrid (ECC+PQ) asymmetric crypto for the time being, but we're (slowly) starting to gain a modicum of confidence in the new standards, enough for deployment

NIST post-quantum standards resulted from a 8+ year process and public competition: https://csrc.nist.gov/projects/post-quantum-cryptography

You can basically just make the numbers bigger. Quantum computers aren't magic, and are still limited in what and how they can process within normal informational theories.