I have heard a lot about R290 but at least in the US, I am not seeing much of a push to go there. R32 is an A2L refrigerant and (according to the article) isn'

I have heard a lot about R290 but at least in the US, I am not seeing much of a push to go there. R32 is an A2L refrigerant and (according to the article) isn't affected by the PFAS ban. In the US at least it looks like the main choice for the future, at least in the near term.