There is no passkey password. If there are, it is entered into the dialog box not a site. And wouldn't do any good cause the passkey is saved on the device and does a key exchange.

If you mean the password manager password, then it is entered in a different place and really hard to confuse it with a website. Also, 1Password requires extra info to login account and that is only used, usually copying from another device, when setting up device.