The poor and vulnerable people in places like Austria, France, Germany, Netherlands, etc. receive generous welfare and assistance from the government to not starve and freeze to death. They'll be fine.
In Eastern Europe, not so much.
In Eastern Europe, not so much.
edit: I'm glad that you mention Eastern Europe, which is where I come from. Paradoxically, more people die from cold in the West, because their milder climates don't force them to invest in insulation.
edit2: the previous claim may be based on flawed methology, see https://academic.oup.com/jpubhealth/article/38/4/806/2966950