Apart from thousands of people dying each year.
Northern Europe's main problem, every year, is keeping people warm in the winter. Heat death in the summer is a novelty. Global warming will actually reduce excess mortality in Europe, because warming winters will save more people than hot summers kill.
On the other hand, people on the equator are FUCKED: https://ourworldindata.org/grapher/change-heat-death-rate?ta...
Is this informed by studies, or are you just assuming "global warming = higher average temperature = less cold"? Because that's not how the climate works. It's very well possible that global warming increases the number of cold-related deaths in Europe.