Frankly, if someone cannot fit the core of their entire philosophical position into one sentence, they probably have no working philosophical concept to begin with. In any case, I think that you (and as I said also Kastrup) misrepresent Goff. Here is his position straight out of the horse's mouth, written in October 2021, although addressing another critic:

“Hossenfelder simply misunderstands panpsychism. She interprets panpsychism as a form of dualism: there are the physical properties of the particles (mass, spin, charge) and then, in addition, certain non-physical consciousness properties. But panpsychists are not dualists. According to panpsychism, an electron doesn’t have two kinds of property: physical and non-physical. Rather, it’s physical properties (mass, spin, charge) are forms of consciousness. Consciousness is the ultimate nature of the physical.”

https://iai.tv/articles/what-physicists-get-wrong-about-consciousness-auid-1954

Question is whether he consider consciousness insubstantial or not. But I never heard him addressing that. Then again, he clearly defines consciousness as non-physical.