Having worked as a code developing MBA consultant in the IoT space, I have banned any IoT and any WIFI requiring devices in my home. The security practices in IoT are simply nonexistent and often completely absent. I use ethernet at home, and have no issues at all with a complete lack of any "smart (snitch) devices". Horror of horrors, I have to walk up to a screen, operate the mouse, physically select things and make them go. My voice is so jealous.
I'd like to do this, but currently in a rental and have to use WiFi. I do use an Android smart TV and have a security camera outside. But both those devices are connected to a separate WiFi/router on a separate subnet. Hopefully my PC is safe from Android/IoT if they get hacked. Of course, anything can happen on the PC too! But at least I can monitor it better.
Once the kids get older, all that goes out the window. They'll become the security hole. Haha.