Even though the Passkey feature has been released more than a year ago and I am deep into the Apple ecosystem, I haven't used Passkeys at all. I wonder how I avoided it, maybe I am too attached to the email/password method.
Anyway, I am a 1Password user as well, so maybe this will be a push to give Passkeys a try.
You can now set up passkeys on your personal gmail, which I've found to be particularly nice for times when I'm trying to log in via webview