So, you are saying that substance is essentially what people in the industry call "endgame"? That is a popular concern among players of Genshin Impact, especially after HoYoverse publically announced that they have no plans for adding endgame into Genshin Impact. Quite a valid complaint if I do say so myself, though I do think that "substance" does imply a different connotation to an unaware person such as me.

Thank you that's really helpful!