If you are going to store passkeys in a password manager, the whole situation is no more secure than just using passwords.
Consider:
1. Password managers tie passwords to sites, so phishing-resistance is achieved.
2. Password managers allow long, complicated, individual password per web site, so compromise blast radius is 1.
Consider:
1. Password managers tie passwords to sites, so phishing-resistance is achieved. 2. Password managers allow long, complicated, individual password per web site, so compromise blast radius is 1.