as a main GX, it's sad to say this, but currently the class is at a bad place in MH.
I honestly wouldn't recommend anyone playing GX as their first choice, unless they truly love the class and they're willing to invest heavily into it. just to keep up with the current meta classes in the content. Note: you could build another class with less costs, and it would probably perform better. (not to mention you more likely to get invited)
and if the intention here is to play GX for the sake of building your shadow set, I suggest that you play any other class in the same account, so that you can