How much of Jades power that she showed in canon was her own as a Witch Of Space and how much was the Green Suns?

It’s dubious. Arguably, her actual Witch of Space powers are what she displays being able to do during the 3 Years, since the Yellow Yard is isolated from the Green Sun’s Influence.

Then again with Bec’s powers being very Space-based, could you truly say there’s a clear divide between the two?