I just put a new window unit my my barn office. Run it at 68F, on high. Very chill.
Odd thing is its R32. Dichlorofluoromethane. Its a flammable gas.
Now how is that better than freon?
“Difluoromethane“ R32
It’s better because when you are connected, skids get greased. When DuPont’s Freon patent expired, they lobbied to outlaw it as dangerous, and suggested the substitute be their brand new improved, eco friendly, patented alternative. Bidet was famously the senator for DuPont in Delaware.
It makes the liberals happy. They don't care if your house burns down.
“Now how is that better than freon?”
Short answer, it isn’t better than freon.
I wouldn’t worry about the R32 as it’s really, really, rare to have leaks in sealed systems (systems without hose connections). You’re more likely to win the lottery.
As to performance, I know that a mix of propane and butane is a drop-in replacement for R12 and performs just as good. I don’t know for sure for your refrigerant, but I suspect it performs fine.
Have you seen that some appliances like mini-fridges or ice makers use R-600a? That is butane.
Because they’re relatively cheap, I cut through a bedroom wall in my mobile home. Running all day, that WINDOW unit keeps the humidity tolerable all summer.