This is probably the best answer. If everything is truly only running on local network and nothing is exposed with a port through your router, you are very safe.
Most issues get introduced when running a server exposed to the Internet.
That said, on the lowest level, if they want to get you, they will. It’s all a risk analysis. And the more interesting you are to adversarial parties, the higher the chances you’ll get pursued.
If you’re Edward Snowden, 99% your calls and conversations are always on record.
If you’re John Doe, truly only your ISP cares when they get a law enforcement request because you really pushed the envelope.
Trending movies are notoriously bad, because movie studios will really try to rake in the revenue.
On the other hand, ripping music from YouTube, no one cares or is able to track it, so risk is very low.
Tbf “our CEO went off making hitler salutes, dismantling our government and issuing shady deals with rich people” is one hell of an excuse. Probably the best one yet for Tesla.
On a serious node, I feel bad for the engineers who came there to do something great and never got to follow through on it. There’s some geniuses working there that should get more deference.