When my old (2014?) "smart" LG got evicted from Netflix, as in "your TV will not be supported anymore starting August 15th 2026" I vibe-coded a Plasma BigScreen like interface with:

* Firefox in full-screen with a custom extension that makes the web UI of Netflix into something usable by a d-pad remote

* Switchfin (which has a Linux version) works pretty well out of the box

* Some custom Python+GTk apps to watch some public TV channels (they have no DRM and have a good API, so it was very easy, and I can get custom views for what my family watches)

* a nice viewer for Immich albums

* a CD player (I bought a 15EUR external USB DVD player)

Everything using a single UI paradigm, with just the things my family and I actually care for. No ads. No tracking (well, I guess Netflix still does some tracking anyway).