Total Science wrote:

“What conclusion do you reach based upon the expansion of Ganymede?”

Loaded question. The …proposed…expansion of Ganymede is just that, a proposal. None of the papers you linked to declared expansion as fact. The various authors…suggested…that expansion…may…have occurred. It has not yet been established that it is the best or only interpretation of the observations. Further, the authors made it clear that their proposed mechanism is, as yet, unconfirmed.

Short answer; inconclusive.

P.S. Answering questions with questions is recognized around here as evasion.