That's correct, once you link the "Berto IOT Device" driver to a temperature sensor (Tasmota, zigbee2mqtt, zigbee2tasmota or Shelly) the temperature and humidity will be available in C4 programming. To have the temperature displayed on OSD you'll need to bind the "Berto IOT Device" driver to C4 generic temperature & humidity display driver.
In my case, I've asked my dealer to bind all the "Berto IOT Devices" temperature sensors to C4 generic temperature & humidity display drivers to have it displayed on OSD and easier programming in HE.
For example in my case: C4 will get the temperature from Aqara Zigbee sensor, if it's above a certain value it will close the Aqara Zigbee curtains, and if the humidity is high, it will turn on the A/C.
In bathrooms, if humidity reach to a certain value, C4 will turn on the exhaust using Aqara Zigbee wall switches for 15min.
In some areas, I'm using Aqara Zigbee motion sensors to turn on/off the light using Aqara Zigbee wall switches.