I personally went only up to the fishing quest, so I don't know what's happening after (but then, I can give a feedback on a "part" of the storyline
what I understood
We're not far in the future of a huge problem that broke Earth into pieces. We're still trying to figure out how to deal with the new environment. The cracks are the current major problem, and we don't know how to prevent/anticipate them.
What I enjoyed the most
The fact it is cryptic, and that none of the NPC I talked to know everything. And also that they are all specialists, so we have to talk to more than one of them to solve problems
What I enjoyed the least
I would say the fact they are static in cinematics (which is solvable I guess. In Guild Wars 2 in 2012 (also small team at that moment), they dealt with it with "masks" that were changing to give the impression the characters moved in cinematics)
Presentation of the story
Again, as I said earlier, I liked the fact there is no ancient sage whatever that knows everything.
I would have add a bit about the background of our character (which may be after the fishing though), because we know we just arrived, but we don't know who, when, where and what. Maybe that could serve to personalize our character too (not up to baldur's gate 3 level of background, but... I don't know like a "specialty" on the skill tree?)
What do I expect
I hope the story is complex, and as a SF story, make us think about what's happening. Like a not mannichean story I also hope for epic moments/discoveries.
Expensions
I would like to... Maybe visit a region where they are not into solarpunk direction? (more steampunk, or cyberpunk (Cloudpunk/Nivalis does it pretty well in a non violent/no combat way imo)
Also visit the Earth, and rehabilitate/heal the planet.
Maybe find desert or tropical islands, volcano or a spaceship?
Also have/create otherwordly plants at a certain point
The game was already very playable, and the story is appealing. You got this