To echo izacus's comment, they are very sensible and there's dozens of variations of the keywords that they accept. We have a Nest Hub, and saying Google twent

To echo izacus's comment, they are very sensible and there's dozens of variations of the keywords that they accept. We have a Nest Hub, and saying Google twenty times a day was a deal breaker so we all use some other variation that works 99% of the time, and looking at history it accidentally triggers itself a few dozen more times during the day. It has a real value for us for now, but privacy issues are real in my opinion.