I don't know about culture...but story-wise, a web novel/comic will be specifically curated to have episodes. By this, I mean that even if the chapters are not over, every episode has to end on some sort of cliffhanger to get the audience to click to the next episode. This is very much like how music has changed over time for tik tok (most songs will have one really catchy verse that will be promoted on tik tok so people will get drawn in). This makes it so if it were in a physical format, it would be weird to read. There'd be random cliffhangers, yet the next paragraph already resolves the previous cliffhanger.
A lot of media is slowly changing to fit the short attention spans of people (due to dopamine-addicting sites like Tik Tok). It's not necessarily a bad thing, but it would definitely affect the publishability of your novel/comic.
Writers "own" their ideas. Now, I am not referring to intellectual property in the sense of physical work that you have actually created. I am talking about the idea that if you "invent" a concept or a story idea, it belongs to you. It doesn't matter what the idea is, the other person is at fault if they want to use it without your permission.
I feel like if you created your own world (let's say... Goshrinonlia) with its own rules and whatnot, and someone else creates a story set in Goshrinonlia, then yes, they are technically stealing your idea--unless they give credit, of course. But if it's something as simple as a storyline (ie. enemies to lovers) and (we're pretending enemies to lovers isn't already a thing) someone else takes your idea of enemies to lovers, that's more of inspiration than stealing.
