Passkeys need to have two factor to count as a passkey per the standard. Otherwise in theory someone could steal your key alone and get in (a big risk).
You need to buy a newer Yubikey with biometrics to make this work. I assume you have an older Yubikey and Google is getting to the standard by asking for a PIN.
I have a https://www.yubico.com/products/yubikey-bio-series/ and it works with Google exactly like you want it to, no PIN required. It's completely understandable to require a PIN if you don't have one of these though.
I don't understand why someone stealing my key and getting in is a big risk. They could steal my house key and get into to my house and do far greater damage: grab all physical documents and grab all computers where their full disk encryption key is in RAM.
Finding a dropped yubikey and immediately having access to someone’s google account is simply reasonably a bridge too far if that ever became commonplace. Someone decided not to allow that footgun to the public.
It’s no inconvenience though since the yubikey with a button to press and a yubikey with a biometric button to press work the same.
> Finding a dropped yubikey and immediately having access to someone’s google account
Is that how it works? A dropped house key essentially has a second factor (the address of the home), but if you have someones Yubikey that can be used for Google, is the Google Username stored in the Yubikey and accessible to the finder?
You should at least need the username but i still totally get the bar being set where it is.
Like you can argue a dropped house key is similar to a dropped yubikey but i'd still give some benefit to the dropped house key involving real world attempts on locks with appropriate social suspicion on that if seen vs a dropped yubikey allowing anonymous attempts.
You need to buy a newer Yubikey with biometrics to make this work. I assume you have an older Yubikey and Google is getting to the standard by asking for a PIN.
I have a https://www.yubico.com/products/yubikey-bio-series/ and it works with Google exactly like you want it to, no PIN required. It's completely understandable to require a PIN if you don't have one of these though.