If the owner of a hardware device is using it, that person has total control over the device. Nothing can be blocked. Nothing can be hidden. All data must be available in plain language. That owner/user should have the right to inspect and modify everything in the device in plain language.
With today's memory / storage capacities and with today's LLMs, that should be easily implemented by starting over and reprogramming everything.
Maybe I should fork a few FOSS products and build this in.