Net. Of course, it's not uniformly distributed. The one place where this would, I think, make potentially a big difference is WI. There was a huge rash of infections there in November-December 2020 and the skew was estimated to be quite strong IIRC. Maybe MI also. While there wasn't as much Covid in Michigan after election day, it probably skewed even more because Covid hit Michigan and especially Detroit so hard at the very beginning. Detroit was, IIRC, as badly hit as NYC in March and April of that year.
Well, not big difference. Bigger than other places, perhaps.