There are wall mounted duct-pipe and ductless air conditioners. They aren't as efficient, but they work. They are the most common A/C units I've seen here in Mexico.
So if you don't have A/C, it's certainly not because you physically can't. I personally get by with a fan.
Though I definitely have culture shock when I return to Texas and remember people will have their A/C on 24/7 at 69F.
I live in Seattle and I finally broke down and bought a window unit but my windows open horizontally (Honeywell MN10CESWW), the unit I got is actually floor one with rollers so I can stow it in a closet when not in use, and it has a duct that connects to a vertical thing that goes in the window. I never thought I would need one, I have lived here my whole life but now we have 3 or 4 weeks a year where it is just unbearable so I use it to cool my bedroom. Just Crazy.
Big winners: Canada, Russia, Scandinavia. Big losers: India, Southeast Asia, equatorial regions. Crushed by climate refugees: USA, Continental Europe. Buy a cabin in the mountains, not a beach house.
Well you can sort of see the point. If the world really can't be arsed to get together and actually try and fix it, may as well go out in a blaze of fire, heat and complex hydrocarbons...
And that means window units are not an option.