What I'd rather like to see is a device that is marketed as a generic, multi-purpose cryptography device. Whether it's used for SSH authentication, GPG signing, 2FA, Nostr, Bitcoin transactions or other cryptographic operations would be up to the user. At least some HW wallet devices can do most of this already, but they are still marketed as HW wallets and thus almost everyone with such a device can be assumed to be using it for that specific purpose.