Passkey Friendly Name based on Relying Party?

I am creating passkeys using client side javascript and trying to see how the friendly name of the passkey is created.

When the passkey gets created the publicKey the name for the relying party is ignored and iOS and MacOS retrieves the page of the relying party.

It seems the Open Graph site_name meta tag is used for the friendly name.

<meta property="og:site_name" content="Passkey Test">

And the apple-touch-icon is the icon on iOS (but not on MacOS) in the passwords app and it needs to be over 180px.

<link rel="apple-touch-icon" href="/apple-touch-icon.png">

Is there anywhere this is documented and confirmed as once the passkey is enrolled updating the site_name or apple-touch-icon the image never gets updated.

Passkey Friendly Name based on Relying Party?
 
 
Q