[sl-1]

It is still true, most common refrigerants still have quite high GWP [1]. Not as bad as in the 70's, but the transition to neutral gasses is not ready yet. And then there is also all the old installed systems still running.

1. https://en.wikipedia.org/wiki/Refrigerant#Common_refrigerant...

[himinlomax]

It says right in the table that propane only has 3.3 times the potential of CO₂. That's in fact quite low for the use.