Brother in law. Lifelong alcoholic. Was in and out of the hospital a few times over the prior year. Liver was failing. Diabetic. Had to have his foot amputated due to complications of the diabetes. Apparently caught COVID-19 from the visiting home health nurse while recovering from the amputated foot. Had to be hospitalized again and tested positive for COVID-19 while there. Official cause of death on the certificate was COVID-19.
He probably would have passed away soon even without the COVID-19, but that maybe played some role in pushing him over the edge. (Probably had at most a few more months to live without it.)