Notice how the report did not say that the drugs were the reason that he died, just that he had drugs in his system. They may have been a contributing factor, but Floyd definitely would have been alive had the officer not kneed him for 8 minutes. Furthermore, the autopsy you cited listed the cause of death as homicide, not drug overdose. And this is all ignoring the second autopsy which says in no uncertain terms that Floyd suffocated to death.