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What about when it updates? Just as vulnerable as anything then

Sure, but if it continues to run locally from trusted distributions, it should be fine.

You can also check to see if you have a verified distribution with a hash.

I am not an IT guy. But if something gets directions from a server and you hack the server, shouldn’t you be able to control it? Aren’t those 5G controlled buses in china controlled via a server?

Like I said not an IT guy.

It's like the directions are downloaded like a program. If you never update or only update from trusted distributions you should be fine. But I don't completely know how it's setup.