> neither of the above can work for all devices in a household and more things in the house are tracking you and serving adverts
Isn't the best approach is to just buy only devices that either known to not have adware onboard (e.g. "dumb" TVs), or that can be re-flashed with software you can relatively trust?
That only applies to the core OS and its capabilities. The apps can contain all the nonsense they want, because OS can deny the access or feeds the sanitized data if the app's badly written or insists on the business model where user pays with their privacy.
Isn't the best approach is to just buy only devices that either known to not have adware onboard (e.g. "dumb" TVs), or that can be re-flashed with software you can relatively trust?
That only applies to the core OS and its capabilities. The apps can contain all the nonsense they want, because OS can deny the access or feeds the sanitized data if the app's badly written or insists on the business model where user pays with their privacy.