Maybe, but I think it's an overblown term in these sort of questions. Being Turing-complete doesn't mean that it can do anything. It means that it is isomorphic

Maybe, but I think it's an overblown term in these sort of questions. Being Turing-complete doesn't mean that it can do anything. It means that it is isomorphic to a Turing machine; in other words, it can emulate a Turing machine, which means it can compute anything a Turing machine can compute. That's definitely not the same as "do anything." For instance, it doesn't mean it's suddenly granted access to APIs to communicate with the system/break out of a sandbox. I mean, I guess it's theoretically possible for it to create an entire simulated CPU (is it though? not sure...), but not in practice. The more concerning thing is how strong your sandbox is.