Siri doesn't know that my front door is called "FRONT DOOR". I only have one smart lock, which works perfectly, and it is called "FRONT DOOR" in HomeKit. When I ask Siri about my FRONT DOOR she responds that she cannot find it. When I ask Siri about the status of my DOOR, she responds with "The FRONT DOOR is locked/unlocked". I'll then say 'Alright Siri you literally just used the phrase "FRONT DOOR" five seconds ago…
Me: "Hey Google, play Nine Inch Nails, you know, the one in my Google Play library"
Google: "OK, playing Nine Inch Snails, a band nobody on Earth has heard of and is definitely not in your library!"
Me: (Repeat a few times, trying all kinds of accents, eventually I get tired of songs about nine inch somethings, and I pull the car over and type in by hand what I'm looking for.)