The audit will be useful for SCOTUS but worthless in overturning the certification automatically. that is why every state rushed to certify because it is basically impossible to overturn.

Even if the audit shows 100% that Trump won, which it would, it would not automatically decertify the state. The Trump team would have to take the audit findings to court. The Audit is going to take until just before the state has to seat electors which means its impossible to decertify. Only SCOTUS and legislatures at this point.