Alexa, Google Home, Nest, Ring, Apple iHome, all smart TVs newer than 2016 and all PCs running Windows 10 1903 or later are on my banned devices list because of the privacy risks they present. (iOS and Android devices are admissible as long as their digital assistants are turned off, and I may add stock Android ROMs to the list and only allow Replicant, LineageOS, etc.) I've already notified my girlfriend of the list, so if/when we make a home together, she knows not to bring anything on it into the home. I'm also training her in how to use Ubuntu and KDE for small-scale productivity.
For those curious as I was, Windows 10 1903 or later made it harder to disable Cortana. It's no longer in Settings and now requires a change in the Group Policy Editor (available to Enterprise and Education editions) or adding a registry entry.
I've always been a little confused about the asymmetric concern (at least from the vocal majority) of Alexa/Google Home vs all of the other devices constantly around us that are capable of recording and transmitting. If I were willing to surreptitiously spy on my users I wouldn't constrain myself to only devices with in-your-face voice recording capabilities. I have an Echo among the dozens of internet connected devices in my home, but the Echo is the only one most people will show concern about.
