…. The Echo currently works with a much wider range of smart-home devices than Google Home…
My Google Home (4 of them) are all integrated into my home automation SmartThing hub and have access to all my Home automation devices. GH works with IFTT to expand even more options. So I’m not sure if the comment means direct control of device with no intermediary. For me I like an intermediary device since it allows me a clean and powerful interface to home automation. So from my GH I can say commands such as
‘Ok Google turn on night mode’ – This causes GH to shut off all my lights, close my garage doors, Turn off my TV and various Sonos player
‘Ok google turn off/on device’ Any device I have hooked up to SmartThing is turned on or off. With some having additional volume or dimming capability.
All in all, I have found GH to be a very good voice command interface to my home automation