It sounds like the only person we know was using LLMs was the plaintiff. He believes the court was as well, but I’m not aware of any reason to believe his accusation

Not the radio spectrum, by definition. Visible light and radio are different parts of the spectrum

I can’t see how they’d do it, proton gets installed by the steam client. That client doesn’t run with root privilege, so at the very least they’d have to trigger a password dialog which would be highly obvious.