I'm not sure if the country mentioned above is Germany, but well in Germany I've been in many (small and large) corporate offices without AC. It just gets hot in summer.

I honestly find working to be harder in that environment. German summers are traditionally not that long, but still it's two months of lower productivity.

There is one benefit though, shorts and sandals is accepted as office clothing.

and people commonly take weeks or even a month off in summer.

That's naive. Modern building code in the US is pretty/very heavy on energy efficiency. And of course European buildings heat up.

All new buildings in EU now have to be A+ energy efficient meaning it’s nearly self sufficient - heats up from human heat and air-to-air heat pump.

So, basically the same legislation as what California had implemented a few years before the EU.

You do realize that wooden houses are much better insulated than brick houses? With brick you have to add an insulating layer (Styrofoam or other materials), with wood the walls themselves are the insulating material.

I live in a country that uses traditional brick and mortar construction and I can tell you that American homes are far easier to condition climatically.