Highly recommend you get a reverse osmosis filter like Aquatru.

Tap water is full of fluoride, endocrine disruptors, prescription drugs, glyphosate, birth control hormones, and other toxic chemicals. It’s arguably the worst anyone can drink.

You can read more about fluoride here: https://truthaboutfluoride.com/

Although I think fluoride is banned to some extent in Europe. If I’m not mistaken I think it’s not added to tap water there.