Suppose the most general form of the Riemann hypothesis were established, say, the Generalized Riemann Hypothesis (GRH), or even the "Grand Riemann Hypothesis." How many of the various unsolved problems concerning prime numbers would be thereby resolved?
I know that the GRH is now known to imply that every odd number $\ge 7$ is the sum of three primes. And other conjectures would be settled with the GRH. But my sense is that many unknowns about prime numbers would remain standing even after GRH is proved. I ask because at one time I naively assumed that the Riemann hypothesis was the key to the primes, but now I am not so sure. Would it at least greatly clarify the distribution of the primes?
I am aware this is not a precise question, but perhaps those knowledgeable could educate us.