Ceiling vent installed incorrectly?

Hello everyone,
our first ceiling has now been poured and during today's inspection I noticed that some ceiling outlets are visibly not protruding vertically from the ceiling. The outlet will still be shortened later. Is this a major defect or can the future valve be installed without problems?

Thank you very much

Can be installed without problems, later it will not be visible how the pipe behind it looks and it will also become sealed.

Okay, thank you very much. Then I am relieved.

some ceiling outlets obviously do not protrude vertically from the ceiling

It should not matter with the ceiling outlet. If floor outlets are present and also installed crookedly, the subsequent floor structure can cause floor outlets to have different distances to the wall in the end. If there are several outlets in a room, this can look unpleasant.

If the construction workers install such things crookedly, one should perhaps generally take a closer look. Also sometimes measure door and window openings (they should be rectangles, not parallelograms or trapezoids).

You apparently haven't installed something like that yet, otherwise you wouldn't say something like that...

The filigree panels are uneven on top and so the valves tend to be slightly crooked - the long pipe makes it look even worse.

But as said, that doesn't matter at all...

Similarly, door and window openings can even be (slightly) crooked - afterward you can't see a thing. Although that shouldn't be the case.