Supposedly they are compatible with Google Assistant. They claim they are on their site and there's a video, but when I look in Google Assistant, I don't find their integration. If you can figure that part out, then you can use Google Assistant Relay that @ogiewon ported to HE for us.
You'll need to have a separate Node.js server, but that's really not that big a deal to setup on a RPi or an old computer. It's handy to have as well, because there are so many things you can run on a Node server. Worth every penny and effort.
I've been using silent commands for Google Assistant Relay for a lot of things that aren't directly supported in HE and it really works well. I even use it to make Alexa speak, as strange as that sounds. Super fast, and really reliable. You send TTS to the Google Assistant Relay driver with the prefix [CC] and Google Assistant will perform the action without responding. It's really nice. Feels like HE is directly connected to the device because Google's cloud is so fast.
