I don't understand this article. Europe is usually not this hot, hence lack of AC in many places. Floods and earthquakes are also uncommon, hence the buildings in most places are not up to code against, say, Japanese standards.
Europe averages 53k to 175k heat-related deaths per year. The difference depends on whether you listen to the EC or the UN. https://news.un.org/en/story/2024/08/1152766
The comparable number for the US is 4-11k, albeit with about 20% fewer people.
Note that the US is further south than Europe and generally has higher temperatures.