It’s the first step. There will be at least two people in a concurring decision calling for the decision to be overturned.
About that “petition to SCOTUS to overturn Obergefell….” It’s one person trying to get SCOTUS to overturn a legal judgement against her under state law. It’s not going anywhere, and Obergefell won’t be overturned. Yet.
Supreme Court formally asked to overturn landmark same-sex marriage ruling
10 years after the Supreme Court extended marriage rights to all same-sex couples, it will consider whether to take a case asking it to overturn the decision.