What’s the benefit of using GPG keys over SSH keys? Also, is there a way to use asynchronous cryptography for unlocking LUKS disks? Currently, I have configured a static password in the second slot of my Yubikey, but this could become problemmatic should I lose my laptop and my Yubikey together. That’s unlikely, imo, but it does mean that it is less secure than the password stored in my head for unlocking my LUKS disks.
P.S. I have a cold spare Fido2 key: Nitrokey Fido 2, but it doesn’t support ED25519 - which is why I replaced it with the Yubikey.