There are ZERO valid reasons to use compromised hardware. Lest alone to use a distro with opaque financing sources that fully endorses government developed/sponsored platforms such as Signal and Tor.
The downvote bots will arrive in heavy weight but will exist at least one voice exposing the honeypots tonight. Please consider saner options such as LineageOS or Replicant which support dozens and dozens of different device types.
Don't fall for the trick of "it wasn't proven yet" when there is so much smoke and red flags. 3-letter agencies take pride in counting the decades until such tricks are exposed.
So you're against Signal, Tor, and Graphene, and suggest to instead use.. Lineage?
Don't get me wrong, I love Lineage, it was my first custom ROM, but this seems a little tinfoil