The former takes care of all my health and well-being needs and spills over into the spiritual practice side.
Th latter does whatever it does on the spiritual side and also spills over into health and well being.
One is practiced with the aim of achieving something the other sort of practices itself. :)
We don't have a syllabus for Chi Kung but here's a list of some of the groups of exercises taught and some brief theory as to their uses: https://shaolin.org/general-2/five-animal-play/play09.html
I mostly stick with 4, 11 and 12 on that list - find the more advanced things still a bit overwhelming for more than occasional practice.
Happy to provide more detail if you are interested.