[md_]

Definitely this. I think the worst aspect of Passkeys is that the noble goals (public key crypto! unphisability!) seem to somewhat unavoidably wipe out one of the--in hindsight--really valuable aspects of passwords-in-a-password-manager:

That you can always just copy them out, put them in a different password manager, or write them on a post-it.

That said, I think this is a byproduct of the design space being complex (as you suggest) and not, as the author seems to feel, "thought leaders" or malice.

[rekoil]

I've been using Passkeys saved in 1Password, I thought that gave me the power to transfer them, but I just looked and apparently the export feature of 1P doesn't allow exporting the Passkeys, it just tells you you need to create new ones in your new password manager, so that's pretty crappy...