According to the latest blog post:
Right now we are auto-enrolling Google accounts that have the proper backup mechanisms in place to make a seamless transition to 2SV. To make sure your account has the right settings in place, take our quick Security Checkup.
https://blog.google/technology/safety-security/making-sign-safer-and-more-convenient/
So we recommend you do a security check here: https://myaccount.google.com/security-checkup/3 and fix all issues. Google also plans to force 2SV for more users:
By the end of 2021, we plan to auto-enroll an additional 150 million Google users in 2SV and require 2 million YouTube creators to turn it on.
https://blog.google/technology/safety-security/making-sign-safer-and-more-convenient/
Recommendations
Developer:
Do a security check (link above) for all your Google accountsQA engineer:
Do a security check (link above) for all your Google accountsPM/DM:
Do a security check (link above) for all your Google accounts