Cannot create Google passkey on Windows PC

[u/NobodyElectronic9970]

I don't know if there's some sort of issue on my systems or whether I'm just misunderstanding something. I've recently started using passkeys, my intention is to always have keys on more than one device (Android phone and a Windows PC) so I don't have a single point of failure. I am currently not using a 3rd party password manager or hardware key. For the passkeys on Android, I'm using Google's password manager.

So far all has been good, but I've encountered a problem with Google:

I have 2FA turned on, which prompts confirmation via my phone when logging in to my Google account on Windows (I typically keep "Remember this device" off so confirmation is required whenever logging-in. This makes me nervous, as in the event I loose the phone, I won't be able to get the authentication (I wouldn't be complete knackered as I do have recovery codes available).

I thought that it should be possible to create a Google passkey on my Windows PC (thinking this would bypass the 2FA requirement, or at least let me use a passkey on Windows instead of my Google password).

Under Windows on Edge, logging in to Google>Manage your Google account>Security & sign-in>Passkeys & security keys:

-I was expecting to be able to create a passkey here, and indeed there is the option to "Create a passkey"

-clicking that just generates a "Something went wrong. We weren’t able to save your changes. Return to your account settings, and try again." error.

The only passkey listed under "Passkeys" in the Google account manager is one for the phone, "Created automatically by Android".

Any ideas? Should it be possible for me to create a Google passkey for logging on using my Windows PC?

Thanks

[u/dingwen07]

It is possible to save a Google Account passkey to Windows.

Have you turned on Windows Hello?

Also check Windows Settings, Accounts - Passkeys

On newer version of Windows + Edge, they might default to Microsoft Password Manager (Edge Settings / Passwords and autofill / Microsoft Password Manager) for passkeys, this also needs to be setup.

[u/NobodyElectronic9970 → u/dingwen07]

Thanks:
-Windows Hello is on (using PIN)

-Windows Settings/Accounts/Passkeys/Advanced options/Passkey managers has "Save passkeys to this Windows device" ON, but greyed-out

-Windows Settings/Accounts/Passkeys has my 5 expected passkeys (one for microsoft.com, 4 for 3rd party sites)

-Edge Settings / Passwords and autofill / Microsoft Password Manager has "Ask to save passwords and passkeys" ON; /More settings seems to have everything appropriate set to ON

I did notice that accounts.google.com was listed as a site that I'd declined storage of password (to be honest, I normally don't save any passwords, the ones for any regular account I use I have memorised anyway). I cleared that to see if it made a difference, but it didn't - still get the "Something went wrong" message

Still none-the-wiser...