[lxgr]

Attestation is basically gone – it doesn’t work with cloud sync, which is largely where things seem to be moving.

My main concern at this point is user confusion, followed by platform lock-in.

Or am I missing a way for users migrate from the Apple ecosystem to Google or vice versa, for example, without registering new passkeys for all of their accounts before they trade in their old device (or it breaks and they try to recover on another platform)?

Not even 1Password supports exportable passkeys at this point. Apple even lets me easily share them across accounts (which seems like a huge risk!), but obviously not across ecosystems either.

[wkat4242]

I'm hoping bitwarden will start offering this. After all it's open source and with its own server you can self-host, so once it does we should be able to own it all ourselves. I also have zero interest in this if it means being tied into Google or Apple.

[lxgr]

Bitwarden is planning to release their implementation in October: https://bitwarden.com/blog/bitwarden-passkey-management/