Actually, it looks like only - https://www.so-low.com/cryogenic-storage this freezer from the so-low products is based on liquid nitrogen. But is more of a liquid nitrogen tank where temperature cannot be modulated.
But that being said, ThermoFisher is a very well known company so they will definitely have a lot of sway in the decision making of the government. And not sure how big of a disadvantage it is to simply have a ultra-low freezer that is compressor based vs liquid nitrogen based.