Or not. Tension is a key ingredient of fiction that people pays for. If you're imagining a world to flee from reality it could be very bland and unrealistic.

There is LitRPG genre in which tension is not as key an ingredient. Also, there can be consumers of the writeup who don't particularly "buy" a book - so the writeup doesn't have to follow a typical book structure.

I've actually gotten paid for fiction writing before! I'm a good writer, but I despise marketing/branding and also really dislike doing creative work on a deadline/for a living. (It's the same reason I'm not a SWE actually because programming is a creative task for me.)