@jarnoglenn nice to hear
Which device are you using, because there’s a difference between the Thermostat device and the latest Temperaure/Humidity device.
For the gBridge HeatingThermostat based devices you need to use the auxiliary field and fill in the device-id of a sensor that has the attributes temperature and humidity (optional).
For the gBridge Temperature device you fill in the field ‘pimatic_device_id’ the device-id of the pimatic temp/hum sensor. In the auxiliary field you fill in the pimatic-device temperature attribute name and optional in auxiliary2 the pimatic-device humidity attribute name.
Getting the humidity value from Google Assistant is difficult. The only way until now was typing in Google Home app the following english question “what is the humidity of ‘your device name’”. The answer will be in your own language.
Update: when I configure in the assistant app to use native language and english and I choose a device name the Assistant can recognize in english. The english voice command also returns the humidity value.