Right now, when I go to the security section of my Amazon account in Chrome, it (unasked) prompts me to add a passkey, and the popup on my Mac says, verbatim:

> Add a passkey? "amazon.com" supports passkeys, a stronger alternative to passwords that cannot be leaked or stolen. A passkey for "xxxxx@xxxxx.com" will be saved in "Passwords". Touch ID to Save Passkey Cancel

I don't have the slightest idea what "Passwords" is as the destination. My iCloud keychain? My Google account? My 1Password?