The answer is no. Google flights supports advertisers who pay the money to be shown. Basically you’re being shown paid advertising.
You can use it to help you identify flights, but in reality a good OTA will always beat Google. Future.Travel, or many of the other online ticket agencies, will fill in the blank’s that Google flights leave empty. Remember to check for both one ways and round trips for the best pricing. Always check to see if business is cheaper than economy.