I ran into this problem one time. I had some android that was absolutely not my primary phone that I logged into, and it was sitting plugged in, in my basement

I ran into this problem one time. I had some android that was absolutely not my primary phone that I logged into, and it was sitting plugged in, in my basement for diagnostic reasons (I just needed an android running with a linux shell for testing). About a year after forgetting about it I was trying to log into Google and they prompted me for my 2FA, which I happily provided since I use Google authenticator. Then, when trying to access my passwords stored on my google account (passwords.google.com) I was prompted with a message saying that there was suspicious activity on my account, and I needed to approve a pop up on this android phone. Google would not let me access the password manager until I could physically drive back to that phone to approve it. They refused to provide me with any alternative options despite having a yubikey and sms. Finally, I navigated to my inbox (everything else would load except for that password manager) and went into details at the bottom of the page, then forcibly signed out of that android phone. Bear in mind this was the same device that it refused to let me access the password manager on. Anyway, after removing the device from my account it let me access passwords.google.com