What does your feature entail? What is it for? How will it affect existing workflows or user experience?

It's kind of a dealbreaker for me right now that Orion doesn't have full Passkey support- If I need to sign into a website that I have a passkey saved on my iPhone for, I wouldn't be able to since it doesn't give me the choice. The picture above is the prompt that shows on Orion when using FIDO2- note the lack of an option for a passkey.
What are the exact ways that you see a user using your proposed feature? Please go into as much detail as possible, and provide examples of how other browsers/apps implement this feature, if applicable. If your feature suggestion adds on to an existing feature, how would it work into it to extend its usefulness?
Rather than using its own FIDO2/Passkey prompt, Orion should hook into the native api use that instead.
