I think the health system in this country (the US) will come to a screeching halt if such a "needed" ban is imposed - at least when it comes to forwarding lab results to doctors. Not sure doing away with them will improve patient safety and cyber security, but it sure will spare a few trees and keep tons of shredded faxes out of landfills.
The myth of the secure fax machine April 6, 2020 https://www.itproportal.com/features/the-myth-of-the-secure-fax-machine/