I want to be enthusiastic about this technology and at first I was, but it's getting harder. I tried to set up passkeys with the sites listed here that I already have accounts on. Results:

1. PayPal: I could not find an option to do it on either a phone or a web browser even after reading the linked instructions. Perhaps it thinks neither device is compatible (they are).

2. Microsoft: After eventually I found an option inside its settings to go "Passwordless" which sounds right, it instead tries to ram an app called Microsoft Authenticator down my throat. On passkeys.directory I check the instructions for insight and I see it says "All you’ll need is a device running Windows 11 and the Microsoft Edge browser." So much for cross-platform standards. If I had been using Windows 11, I assume I would have still needed my password to log in on my phone or anywhere else.

3. Kayak: Works fine, although the log in option is not as discoverable as it could be (I had to click to log in via email, and then click in the email field, and then an option appeared).

4. Shop Pay: Works fine, the only one about which I have no complaints.