I’ve added a couple of scenes in HA and exposed these to Google home through nabu casa. Strangely, it works if I myself tell Google to “activate <scene>” but for my wife it does not work. I’ve confirmed on the screen of my nest hub that it is hearing the correct command, it just doesn’t know what to do with it.
She’s a “family member” and can control all other HA devices, but not scenes. I’m not able to find scenes anywhere in my home app either, despite working fine with my voice.