Its not. It's just like a light novel. A 'visual' novel if you will. And honestly kinetic ones are the best imho. I'd be surprised if you can name me any good VN on here with meaningful choices. Most writers seem to include a few meaningless ones here and there or use it to select a character to date.
Most of the VN's are dating sims, so them having choices that involve the increase/decrease in relationship with a character make sense
There's a few that affect the world more than just that. From the top of my mind, there's Minotaur Hotel, but there might be more that I don't know, since I specifically look for Furry NSFW VN's