The tado website/app grabs AQI related values from some source, it would be nice to have these values in HA as well. I tried to check the network tab when the page loads for API calls but it looks like this data is loaded some other way.
I’d love to see this too, particularly as Tado also has local Pollen information. I’m currently having to use Node Red specifically to extract this from the Tado API using node-red-contrib-tado-client / Get Details Air Comfort, and it would be much simpler if this could be part of the native Tado integration.