Unable to sign in to a Google account using a saved passkey

I actually don't think this is on the "Google side", at least not entirely, and here's why. I'm using Macos Ventura, FWIW.

When I save a passkey to iCloud Keychain, Google recognizes it and lets me use it to log in the next time. It works every time. But when I save a passkey to 1Password instead, Google never gives me the prompt, even if I click "Try another way". I have the latest beta extension installed and beta desktop client. "Skip password when possible" is enabled.

I've tried using a passkey saved in 1Password on 4 different browsers (Chrome, Edge, Safari, & Firefox), both desktop and mobile, with multiple different Gmail accounts, and tried opening the pages multiple different ways.... nothing seems to trigger the passkey prompt. I've tried both free Gmail accounts and Google Workspace accounts (for which I am the administrator) with the same result.

I did a quick scan of the passkey API documentation and when a client visits a server that supports passkeys, the server does a query of the client to find out what authentication methods it supports.

I have two theories about what may be happening
1. 1Password is not responding to this query to let Google know that passkey is an available option, or
2. Macos is intercepting this query and responding to it before 1Password has a chance.