The local government here pushes "smart thermostats" which I've had fail twice because the app on the phone couldn't reach the server that day. If I must have digital controls, connect them to a physical network that's isolated from the internet, and a local panel to interact. I don't need an app on my phone.
We can't use the broil feature of our oven, because it is an on-line feature only and we won't connect it to wi-fi... bastards.
For the ultra-rich, probably this.
Personally, I don't mind 'smart' tech. But only if used wisely, making life more comfortable, saving energy, etc.
I do mind the 'let random 3rd parties spy on your everyday life' part. 'Smart' could be just "automatic" and/or LAN only. Connected but not to anywhere outside the house.
Also I dislike making things more complicated than necessary. Light on/off? Physical switch does the job. Ok, add TV-style remote if you want. But doesn't need phone app/WAN networking or software updates.