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Generally true, but Google has started using the stuff in production: https://cloud.google.com/blog/products/identity-security/why...

But its still bleeding edge. Its been used for experimental purposes but always in combination with a traditional algorithm (so if its broken the traditional algo still secures things). Its definitely not trusted yet.

Yes, which is what google is doing if you read the blog post. They wrap PQC encrypted message with x25519.

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