That a system is deployed doesn't mean it does what it is said to do. Specifically if we're talking about self-guided missiles or loitering munitions, those are

That a system is deployed doesn't mean it does what it is said to do. Specifically if we're talking about self-guided missiles or loitering munitions, those are designed to be destroyed on impact and so the requirements for autonomy are much smaller. If you're talking about a gun drone that autonomously hunts down people and kills them, then that's not a technological capability currently available, at least not if you're interested in accuracy. Although, I guess that's the point, accuracy is often not a priority. Like early gun powder weapons part of the value of autonomous weapons is their potential for terror.