Ask HN: Google using YouTube as 2FA even though I’m signed out

Recently my google account defaults to showing a prompt in YouTube that I have to accept. I am signed out within the YouTube app itself and no matter how many times I use authenticator code instead, it always defaults to YouTube.

Is this some new dark pattern I can’t get rid of? If so, this is by far the most annoying thing ever. Is there a way to complete remove Google from my life? (Although I use SSO for so many things)