I typically solve this by:
- Factory reset the Smart TV to take it offline.
- Install Android TV on a Raspberry Pi and connect it.
- Mount the Raspberry Pi to the back of the TV with some Velcro tape.
The result is most of the convenience of a Roku with none of the privacy concerns.
And as others have said, JellyFin is a great addition for watching home movies, or any other Mp3 or MP4 files.
But also, the most Android streaming apps just work.
As of when I posted this:
- Disney+ works now.
- DropOut.tv works now.
- Netflix worked last time I tried it.
- Amazon Prime worked last time I tried it.
- Paramount Plus doesn't work no matter what I try. (But I'm not willing to add Google Framework Service, which would likely work.)
Paramount Plus also has more trackers in it than any other Android app I've used, so I tend to avoid sending them money anyway.