I've posted this a couple times now - the key will be to look at overall deaths compared for a given month of 2020 on or after April 2020 against the same month of 2019. For example total deaths in May 2020 versus that of May 2019. If the total deaths are about the same for the two months under comparison, then it is obvious that a significant portion of covid-19 deaths that have been tallied were deaths from non-covid-19 causes where the person had the virus (or tested positive for the virus or antibodies to it). One in four people who has the virus is asymptomatic IIRC.