The ground at the edge is uneven, still okay?

Unfortunately, it often happens that screeds cup. Going upwards is still okay.. Mine slopes down at the edge. in the shower. that sucks. What kind of room is that? Because of the tiles, I would have thought bathroom? In that case, I wouldn’t put anything on the floor, but only hang it on the wall (yes, also tall cabinets or shelves), if it’s the hallway, of course, it’s different. Anyway, what I’m getting at is, better have it compensated, if you’re already living there, you don’t want to deal with the construction site.

Yes, paying would be one option, but the construction company does not believe that anything is wrong. However, if I put up a shelf that is 2 meters high, it leans as much as the Leaning Tower of Pisa.

And what is my problem?

Only that you now have to argue at a late point in time. Nothing else

only the construction company does not believe that anything is wrong there.

Therefore, report a defect. If the 6mm run out over less than 1m, it is more than 6mm per meter and accordingly outside the tolerance. That much math is allowed.