The claims that searches for your brand prove you are "a real brand", and that searches for "brand + keyword" lift your ranking for the keyword alone, are unconfirmed. Neither Google's documentation nor the trial reporting describes such a mechanism. Brand searches are still valuable traffic from people who already know you. Track them by filtering the Search Console 1 Performance report by queries containing your brand name, and watch the non-brand remainder to see whether your content wins new visitors.