I think they are basically the same, Line 6 just "updated" or "changed" the interface some. My UX2 runs on Pod Farm 2 software, which basically allows me to choose an amp model, add effects, specify outputs, etc. I think Gearbox did basically the same thing.
I think there are some discussions about this on the Line 6 forum.

Bruce


Macbook Pro 2018
2.6 GHz 6-core Intel Core i7, 16 GB RAM
OS Monterey
BIAB for Mac 2022