The thought of Joe Biden managing anything more complicated than his morning bowl of oatmeal is both infuriating and amusing. Whatever a President Biden would do about Covid-19 would be inept. From Stacey Lennox at pjmedia.com:

The COVID-19 “Casedemic”
The first one I will call solving the “casedemic.” This is the elevated number of cases we see nationwide because of a flaw in the PCR test. The number of times the sample is amplified, also called the cycle threshold (Ct), is too high. It identifies people who do not have a viral load capable of making them ill or transmitting the disease to someone else as positive for COVID-19.
The New York Times reported this flaw on August 29 and said that in the samples they reviewed from three states where labs use a Ct of 37-40, up to 90% of tests are essentially false positives. The experts in that article said a Ct of around 30 would be more appropriate for indicating that someone could be contagious—those for whom contact tracing would make sense.