dry fog
I add everything to Home Assistant first. I never add to Apple Homekit directly or to Google Home directly. It first goes to Home Assistant and then I use Homekit Bridge in Home Assistant to get things into Homekit. The same applies for Google Home (HA first then Google Home via HA integration).
I noticed that not everything in HA becomes available to Google Home when I add the Home Assistant integration into Google Home. For example, some of my Lifx bulbs, Tuya or Tapo lights switches/lights won't show up. Even if I reload/relink the integration in Google Home, not all devices show up. However, they are all available and working directly within HA.
With that said, I've found that adding the Tuya, Tapo, or Lifx integration directly to Google Home as opposed to adding the Home Assistant Integration in Google Home, works better. All devices show up and voice assistant works much better.
Anyone else experience this? Could I be missing something here or is this just buggy going from HA directly to Google Home?