I have seen this in the Home app but have never seen it before? There seems to be the ability to talk through HomeKit cameras. I can’t get it to work unfortunately. I use eufy cameras and the ability to speak through the camera was only previously available through the eufy app.
The setup is that I have three eufycam 2c and one Homebase 2, all set upp through the eufycam app and using up to date firmware. Adding the devices to HomeKit works as expected.
The issue is that I have the cameras as "off" when someone is home, but to stream & record when everyone is away...