This is such an awesome feature. New tab screens often come with more entertainment or social media related extensions than make you consume content passively than get you involved in something productive to change the world. The worst offender is news sites. I hate news, current events and politics.
People tend to get involved more with things that they are more familiar with. I think exposing people to GitHub more is going to nudge them into getting into more projects. Even my Hunt for the day was about automated GitHub/GitLab code reviewing 😀