And to head off at least one of the common denier objections, those deaths are reflected in the excess mortality figures, they’re not affected by how deaths were classified.

I.e., the number is not affected by how people were diagnosed, or how their cause of death was recorded. Claiming that there was a widespread trend of classifying unrelated deaths as COVID-19-related doesn’t affect that number at all. Here’s a CDC page about this: https://stacks.cdc.gov/view/cdc/89507/cdc_89507_DS1.pdf