Central Controlled Residential Ventilation: Supply and Exhaust Air, Door Bottom Gap

Isn't exhaust air regarding humid air done in the bedroom?

No, usually supply air goes there so that you have fresh air inside, because you need that at night... the used air is then extracted somewhere else

The question is unfortunately quite nonsensical, it is quite precisely specified where supply and exhaust air belong and the planner implements that accordingly.
A bit like a survey asking where the reinforcement in the ceiling is located.

Thank you Mycraft, I thought it was exactly the other way around.

, I can do without such statements, especially in a forum. So just ......

That was not directed at you but at the initial question and meant seriously. There is nothing to discuss that is firmly regulated.

Surely the planners will figure it all out - but as a home builder you are ultimately always interested whether it makes sense and what solutions others have - that's what a forum is for.

I still find it interesting that in our basement there is only exhaust air. Since we have an open staircase, it will probably work?