Since you mentioned them: Keyonte has 13 PPG, 28%-20%, 4 TO stats so far in his second year. Below are the second-year stats for the players you have mentioned:
Jamal Murray: 17 PPG, 45% - 38%, 2.1 TO
Anfernee Simons: 8 PPG, 40% - 33%, 0.9 TO
I am not sure that Keyonte is exactly on that Murray-Simmons trajectory. So far he has been quite a bit worse. Like, I am not sure if he has any skill that is above average for his position. What is exactly supposed to be his strong suit going forward? Shooting, passing, finishing at the rim, defense, playmaking, rebounding, leadership? He seems to be below average in all of them.