I imagine in terms of medical care access and affordability or welfare stimulus, practically negligible, but in terms of CDC funding, science literacy, public policy, and general preparedness, it would be a whole lot better put together.
So I'd say... 10% fewer deaths? 200K vs. 220K deaths sounds about right.
By saying not only would Republicans accurately report, but perhaps overstate the number of deaths to make Hillary look bad would only facilitate mask compliance and shutdowns, and fewer deaths.
You know that was a half baked idea I threw out and don't think it stands up because I really cannot predict right wing states reporting things under Hillary, and definitely can't predict how that reporting would in turn affect things. Please ignore that part lol
Plus some of the biggest vectors for spread are nursing homes and meat plants. Places where people are incredibly close to one another for hours at a time. The mask shit definitely didn't help, but it was keeping places open that really fucked us over.