I first had to see what grappling is :-) You have to "learn the ropes" a bit to operate the gimbal.

I use the device to record training with my dog using my Samsung S24. I can use the app to focus either on me or on my dog and then set a follow. Sometimes when you turn away completely or, for example, out of sight (when I'm training outside and disappear behind a tree), he "loses" the follow, but on the whole it works very well and follows the movement.