Here is the actual answer you were looking for: The Dynalink TV Box (4K) for $30.
Unbeatable price
One of 3 TV boxes supported by LineageOS for best privacy. Only other ones are the Nvidia Shield devices ($100+) and the Google ADT developer devices (can't be easily purchased)
Possible to use without GAPPS or with GAPPS and a root firewall
Can use VPN or custom DNS despite regular Android TV limitations
Full DRM/Widevine support for UHD content even with LineageOS flashes
I've personally used one for months now for GApps-free, Widevine compatible streaming on Netflix, Prime, Newpipe, etc. I used LOS + Mullvad VPN + AFWall + several Xposed modules to hide root and it all works just fine.
Heave a look at this guide