Cracks in new construction - do they become dangerous, experiences?

Hello, in our new building (move-in 6/22) we have been observing horizontal cracks in the middle of the wall for some time. A crack extends from the hallway through the bathroom and bedroom, and cracks also appear in the corners of other rooms. All only on the upper floor - ring beam present. In the basement, we also have cracks at the ceiling-wall connection points where there is no concrete ceiling but drywall. One crack is vertical between the technical room and the main house, both inside and outside. This is also being repaired. According to the construction company, this is due to a missing expansion joint. Please share your experiences, thank you!

We also have cracks on the upper floor; since we have plaster walls, these will be cracks at the stone joints. It is best to have the site manager take a look; the exterior should already be sealed.

Is this a solid house or timber frame construction?

Is it a solid house or timber frame construction?

Hey, it is a solid house.