2FA authentication for Google accounts from November 9, 2021 required

[German]Google is making two-factor authentication (2FA) mandatory for its Google accounts starting November 9, 2021. In May 2021, Google had announced this move in this blog post. I have been offered the 2FA protection on my Android smartphone on November 3, 2021. And I see from this article that it will be mandatory from November 9, 2021.