It’s all relative, if you live in or close to countryside then it’s a different matter to living in a big town or city. I would say that this is a heatwave and I expect we will get another one, probably hotter, before Summer is out.
All of Europe is suffering terribly high temperatures by their own standards but a lot depends also upon where you are. I remember being in Seville over 40 years ago when the temperature hit 40c, and that was in the early evening, and you wouldn’t want to be in the full glare for long but, because the air was dry, it was bearable. When you have high humidity then lower temperatures can feel suffocating. Cities like London and Paris have their own climate bubbles and the heat feels really locked in.
As a child in Yorkshire I remember hot days but not humidity, we were near the top of the Pennines. Then again, some like it hot but I wouldn’t voluntarily go to any country in search of the sun. I like to see the sun but not when it stops me going out in it.