There are no, "betters" here. Certainly not you. Only an idiot would suggest the entire investigation was to find collusion with Trump. Many say the crime of, "Collusion" invented by Trump himself is not even a actionable offense. The real question is obstruction of justice. We still do not know Muellers findings or his opinion on actionable offenses. We don't know if he found actionable offenses and feels it impossible to indict a sitting President, for example.
I don't expect simpletons to understand that.