What do you mean signal “pinky swears” it’s not looking at it? It’s E2E encrypted and the code is open source - am I missing something? How would they possibly look at it?
Precisely. The metadata and some basic packets analysis suffices to reveal if you are at home or at work, sending text or images, traveling/from approximately where to where or still, on the toilet or working, etc, all without breaking the glamorous post quantum ratchet encryption.