Saving security keys as passkeys for my Google account

Hi AlmoEnd,

According to the screenshot, I can see that 1Password created a passkey for your Google account successfully. May I confirm if you want to use Yubikey to create a passkey instead?

If that is the case, let's click on the "+ Create a passkey" button, and then, on the 1Password prompt window, let's click the security key icon or the "X" button (it should also fallback to select the Yubikey now):
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Let me know if that worked for you.