“All the Rabbonim I know of and respect have made clear time and time again the importance of following government COVID-19 regulations, such as masks and social distancing.”
Same here.
Rabbi Hershel Schachter in particular has written many tshuvot regarding what we should do during COVID-19, not just regarding masks and social distancing, but also regarding how we should adjust our practices at this time in a way consistent with halachah.