From the Settings tab in the Google home app, I can create a speaker group with multiple speakers but I can’t create a light group.
In the Favorites tab in the Google Home app, I don’t see a way to create a group. I can add the “Living Room” lights group that’s already there but that controls my lamp and all the other lights in my living room.
As far as I can tell, the only way to natively combine more than 1 light to function as one device is to create a room and put those lights in that room. The command “turn on living room lamp” would work as intended but “turn on living room lights” would not.