this is five ancestor and i think is the closest to the performance of Goju-ryu
This first form is very similar to the form I had learned.
I assume Hakka origins as it has the characteristic triangular footwork etc.
Also, a stick form I had learned was known as the Northern Beggar's stick. There were many other indicators from the research I had done but that was 25+ years ago and is all water under the bridge.