As I understand it, using a personal email to conduct government business is not exactly kosher.
Doing it to avoid accountability is definitely forbidden. Telling others to hide their correspondence o.
The definition of insanity is giving power to government bureaucrats and expecting good results. A 2020 email from then-NIH Director Francis Collins to NIH Deputy Director Lawrence Tabak showed the go.
Anthony Fauci was part of a group of scientists who were working to "disprove" the lab-leak theory in the early days of the COVID-19 pandemic