The plot of the 'Everything is Fine' novel could potentially revolve around a utopian or dystopian world where people are made to believe that everything is fine through some form of control or manipulation. Or perhaps it's about an individual's journey of self - discovery where they initially think everything is fine in their life until they start to uncover deeper issues like family secrets, unfulfilled dreams, or relationship problems. It could also be a story about a community that tries to maintain an appearance of 'everything is fine' to the outside world while internally there are power struggles, social inequalities, or other forms of unrest.
No, they're not exactly the same. Webtoons can come from various countries and have different styles and themes. Manhwa specifically refers to Korean comics.
Webtoons can be seen as comics. They tell stories visually, have characters and plots like traditional comics, but they might have different ways of scrolling or panel arrangements for online viewing.
I'm not sure specifically as I haven't read it in detail. But generally, graphic novels often tell stories through a combination of illustrations and text. It might be about characters facing various challenges and still believing that everything is fine, perhaps in a somewhat ironic or thought - provoking way.