I am quite new to the Internet of Things, and my wife bought a TV today (a pretty good deal) from Amazon Prime Day - I included the link so that we are talking about the same device. Now, in the home already we have a Chromecast (Gen 1), and bought but not installed yet locks for the front and rear doors. All of which can be controlled using Google Home. We have however, not bought a device like a Google Home to work as a Hub (I worked for a supplier to Huawei among others, while living in China and know what a lot of data collected is used for, so I am a littler paranoid about that kind of tech).
Also, please note that as we continue to do renovations in our home we will be adding ceiling fans, thermostats, cameras, etc. all of which ideally could be linked and controlled through Google Home.
My question is this: in order to connect all of these (current and future) devices do I need to buy a "Hub"? I have read online and haven't been able to find a definitive answer. My main concern right now is being able to control the TV from my phone without having to use a different app (Roku) as I like the simplicity of the Google Home App.
In short - should I invest in some type of "Hub" or do I not need to?