The Mueller Report is just the tip of the iceberg.
Robert Mueller was limited in what he could investigate. Still, he discovered a criminal operation within the Trump organization, led by people like Paul Mamafort and General Flynn. Also, he uncovered criminal acts by Trump's attorney. Michael Cohen. A couple of them are now in prison and Mueller handed off a dozen investigations to other jurisdictions, including SDNY.
But the charges in the Mueller Report are still very damaging, although it was limited to obstruction of justice and cooperation with the Russians to interfere with our election results.
There are still outstanding charges of paying off playmates and porn stars to keep them quiet.
Also, there are many questions about emoluments from foreign countries and whether there was money laundered in Trump's real estate deals?
There are also charges of witness tampering with several potential government witnesses. There are charges of bank fraud also. The Mueller Report is just the tip of the iceberg in this investigation.