The game was awesome at first. After becoming Starborn it becomes 'rinse and repeat', despite following different paths, because I did all available quests in the first universe.
It has some longevity, as you can try different weapons, ships and equipment. You can focus on skilling up and visit different systems.
I tried building outposts but they didn't 'float my boat'.
Long term it's a grind to get as many powers as possible and do the artifact quests over and over until, I hope, you get to fully explore the final temple.
Crafting is a nice way to 'mix it up'.
450 hours in, I do occasionally find something new. I won't tell you what, as they are 'spoilers'.