Wow a faraday cage is needed then… :(

It’s 1984 for sure. Every devices listens.

Yeah untrusted devices should run in a client isolated vlan similar to a guest network.

Yep an isolated vlan with no internet access. Cast your media from a dongel or computer connected via hdmi.

Replying from my pixel 4a with grapheneOS. Phone just works, friendly pocketsize and with proper fingerprint reader.

I’m on the same boat 44" tv, from ages ago. Connected to my linux reinstalled asus chromebox. Freedom baby yeah!