And yet, the difference between Trump or Biden winning was only in the thousands thanks to the current system. That is, it's possible that if the 'rona and Trump's mismanagement of it didn't cause >400.000 deaths, he might've gotten a second term.
Just a note, according to all major sources, Biden won by 7,060,140 votes total. Not saying those 400k deaths may not have influenced certain key swing districts. But there was definitely a much larger gap than 'thousands'.
That's in terms of nationwide total vote count. That's not how the electoral college works though. Biden won by a few thousand votes in a few key swing states. Therefore, it is more accurate to say that Biden won by a few thousand votes.