This is the second piece I’ve read about this planet and both times from what is written we can assume that astronomers believe they are looking at a rocky planet and not a gaseous one.
But I haven’t read the actual words: This is a rocky planet.
Is it? Is that fact knowable from this distance?
A gaseous planet (a small Jupiter) even in the “habitable zone” probably isn’t going to have life.
It’s highly unlikely to be a gas planet at that size and distance from such a star. Something called hydrodynamic escape means that a gas planet needs to be quite a distance from its star, or very large, or both.
It could be a water planet - similar to Uranus or Neptune, which used to be called gas giants along with Jupiter and Saturn but are now more commonly called ice giants because their structure is quite different from the two largest planets in the solar system - but with liquid rather than ices because of its temperature. It would still have a rocky core (as Uranus and Neptune are both believed to) but it’s “ocean” would cover the entire surface. Or it could be a rocky planet like Mercury, Venus, Earth, and Mars. These are the two most likely possibilities from what I’ve been able to find out.
[ A gaseous planet (a small Jupiter) even in the “habitable zone” probably isn’t going to have life. ]
But one of it’s moons might....