To be clear, there is only one official autopsy and it was performed by the Hennepin County Medical Examiner. The HC ME released both a preliminary and a final report. The final report was posted a couple times earlier in this thread.
The Hennepin County ME is independent body that answers only to the county board. Dr. Andrew Baker, the ME, is reportedly well respected and recently earned overwhelming support from the board during his reappointment, even after Floyd's results were released. The National Association of Medical Examiners, of which Baker has served as president, released a statement shortly after his findings were made public in which they stated, in part, he is “one of the most highly regarded and esteemed forensic pathologists in the United States ... known for his expertise and integrity.”
Separately, Floyd's family attorney commissioned to have their own private, independent autopsy performed. This was done after the preliminary autopsy report from the country was released. They selected the examiner and hired a guy that also performed a private autopsy on Eric Garner. They released their findings just prior to the Hennepin County ME's final report. While some may continue to reference this privately funded report, perhaps even the prosecution will make reference it during the trial (they are under no obligation to introduce it during the trial) it cannot be considered neutral or unbiased. Although, interestingly, if introduced to evidence, some argue it may provide ammunition for the defense:
Floyd family autopsy could help accused policeman's defense, legal experts say
Neither report had any impact on rioting or protests; people went ape shit as soon as the video started circulating the night Floyd died.