I read it. And what I found was nearly 200 pages describe various forms of collusion between Trump campaign officials and various Russian actors. True, there was no "treason." But that's moving the goalpost. If we stick with "Russian collusion," the Muller report confirms that it was, in fact, rampant--albeit not chargeably criminal. ("Collusion" is not a crime.)
In fact "not chargeably criminal" as it is written in the report reads more like, "Reasonable Doubt exists, based on what we were able to find. We are out of time and resources, so if it is there, we may not find it." Paraphrasing of course.
What was "chargeably criminal" was the obstruction of justice.
I read it. It's in there, and it is damning on both counts, the second count enough to indict anyone but a president.