Are you sure? TOTP secrets can be exported. I think passkey implementations explicitly prevent that. Unless I’m missing an option to export passkey creds, e.g. print them out.

That same disaster recovery feature (which I need) also helps avoid a future where every forum and avenue of dissent requires dis-repudiation via passkeys. It’s a weird nuance, ascribing a social effect to a simple ability to back up your keys without backing up your whole phone.