This was as great response to the false claim. Including the autopsy report shows you did in depth research before responding, and you disproved the false claim with credible sources well. I would add that the claim was likely made politically in opposition to the Covid-19 vaccine, and intended to deter people from getting it or justifying those who have not gotten it yet. Spreading misinformation like this can be very dangerous, and disrespectful to the family of Matthew Perry by using his death as a catapult for their political advances.