I checked out the summary of the Briand report mentioned in the link and as far as I can tell (?) it doesn't address the concrete issue of, and figures for, excess mortality in the USA in 2020. The caveat about which deaths are ascribed to Covid-19 cuts both ways: people dying of, say, a cardiovascular disease and also testing Covid-positive when they would have died anyway, vs. people who had, say, a cardiovascular disease and would have kept on but who either had an undiagnosed case of Covid or who had 'recovered' from Covid but weeks or months later died from their 'primary' illness because the longer-term effects Covid had kicked out some timbers in the foundations, so to speak. --- Of course, there might also be the possibility that the effects of lockdown and/or economic losses that would have come about anyway due to Covid are driving significantly more people to commit suicide or to OD than would otherwise be the case, and hence also pushing up the excess mortality, but I haven't heard any reports to this effect. (?)
So excess mortality - the number of deaths above the average for several previous years - gives a clearer perspective as to what's going on. To see whether the disease is actually killing a lot more people than would otherwise be the case, unless credible alternative causes can be proposed.
In this study, as far as I can see, the mortality for 2020 is compared to the average mortality for 2015-2019:
https://www.cdc.gov/mmwr/volumes/69/wr/mm6942e2.htmAnd the excess mortality in the USA is roughly 300,000.