Dividing an expanded attic - Humidity

Hello community,
this year we built a Flair 125 with the company Town & Country.
In addition to the intermediate ceiling (attic and loft), we insulated the attic floor from OSB to the peak. There is a vapor barrier in the intermediate ceiling as well as in the attic.
In the attic, there is an insulated window as well as a pipe vent valve for sanitary facilities. The humidity in the loft is quite high, and small droplets form on the vapor barrier.

Now we want to build a partition wall in the loft and divide it. Access should be possible via an insulated attic ladder (mostly closed) as well as access through a room. Access through the room is via a space-saving staircase. We have installed a Lunos ventilation system in all rooms (except the loft). My question now is, is the air circulation in the loft sufficient?
Through room access via the space-saving staircase, "fresh" air always comes from bottom to top...!

To my knowledge, with insulated attics you should also have heating and ventilation, otherwise there will inevitably be problems with moisture, condensation... This is what Town & Country told us, so we decided against insulating the attic (cold roof).

Regarding ventilation: We have a tiny pantry without ventilation (only room) and the humidity rises to over 80% with the door closed. It is supposed to settle over time (residual moisture). If not, we will have to install ventilation...

Attic: Warm air and therefore humidity rises upwards and condenses as condensation in the unheated (?) attic. I can’t imagine the air exchanges itself sufficiently on its own...

Is the vapor barrier of the attic properly connected to the vapor barrier of the intermediate ceiling? Is the attic not insulated or why else is condensation forming there?

The attic is insulated, the vapor barrier is glued to the exterior wall and the OSB floor in the attic. In the upper floor, the vapor barrier is also glued to the exterior wall. Between the upper floor and the OSB attic floor, 200mm insulation has been installed. I think the condensation in the attic is caused by the pipe ventilation valve.

Hello community,
we have now solved it as follows:

We insulated the attic and professionally glued the vapor barrier to the OSB of the intermediate ceiling.
Furthermore, we erected a partition wall in the attic; the side used as storage has a window that is opened daily for several minutes. Additionally, a ventilation brick was installed on that side. The pipe ventilation was moved from the attic to the roof.

On the “occupied” side, a roof window was also installed, which is usually set to “ventilation.” The wall in the attic between the “storage” and “occupied” areas is insulated and fitted with a small ventilation grille.
From the occupied room, access to the attic is possible via a “staircase” which is always open.

Do you think this solution is sufficient?

Green insulation

Red vapor barrier.