Almost none of these are laggards... going over the first few in your list:

, meaning this needs work. It does have a PSK option though, but that's like claiming your protocol is secure because you have 2FA.

bitcoin

Quantum computing and bitcoin - making my call right here and now

crrdlx

Almost none of these are laggards... going over the first few in your list:

- TLS: [RFC (9954) is with the editor now](https://queue.rfc-editor.org/clusters/553/)
- Messaging: [Signal is upgraded](https://github.com/signalapp/Signal-Server/compare/v20260305.0.0...v20260306.0.0), [iMessage was about the first to upgrade](https://security.apple.com/blog/imessage-pq3/), Whatsapp - you shouldn't use this even if it were PQ safe.
- SSH: [implemented](https://www.openssh.org/pq.html)
- Passkeys: [widely adopted](https://github.com/locke-inc/open-passkey#hybrid-post-quantum-support)

Valid one: [Wireguard has renewed interest](https://thomwiggers.nl/publications/pq-wireguard/), meaning this needs work. It does have a PSK option though, but that's like claiming your protocol is secure because you have 2FA.