This is what I've read on the subject of q-day.

The gist is that Shor's algorithm might not be strictly necessary with a quantum annealer.

https://www.forbes.com/sites/arthurherman/2021/06/07/q-day-i...

There is consensus on this question.

  * ssh(1), sshd(8): add the [email protected] hybrid
   ECDH/x25519 + Streamlined NTRU Prime post-quantum KEX to the
   default KEXAlgorithms list (after the ECDH methods but before the
   prime-group DH ones). The next release of OpenSSH is likely to
   make this key exchange the default method.

https://www.openssh.com/releasenotes.html