Kermi x-well D13 pendulum fan (maybe same as Bosch Vent 3000D)

I would like to request HA support for the following decentralized ventilation system (pendulum fan):

Manufacturer: Kermi
Product: X-well D13 pendulum fan
connectivity: WiFi, Bluetooth

The fan can be controlled by app (WhiteAir).
This app also allows remote control through their servers after creating a user account. Google Assistant support was possible in an earlier version and seems to be removed.

There are several hardware controllers. I own the ‘smart control’. It acts as as bluetooth remote control and WiFi gateway. The app communicates through WiFi with the fan.

Link to product page (english):

Link to technical data (german):

(link to specific PDF under “Technische Daten x-well D13 Pendellüfter”).

I’m happy to help/assist/provide test results etc.

Thanks a lot!