Differences Between Web/Light Novel Adaptations and Original Manga

[wandere]

And that difference extend to the length of each story arcs, or how heavily each arcs are interconnected.

Now I don't read web novels, and I rarely read novels or light novels. But from what I've read, each volume usually concludes at least one specific and rather substantial arc.
You can have some mysteries and questions that carry over from previous volumes to the next, but I think it's quite difficult to create truly interconnected and overlapping conflicts in a novel over multiple volumes compared to a manga.
Not impossible, yes, but I think it is substantially easier in manga.

Because in manga, you have the advantage of visual guidance to help you remember and keep track of what happened to whom, what, and when.
Without needing a whole paragraph of "do you remember this happening a while back?",
in manga, you can simply have one flashback panel, and all the memories will come flooding back to you.

And that is the extent of the differences between original manga and LN/WN adaptation that I have noticed so far.
About violence and the tropes and all of that, well... I don't think there's much of a difference, really.

I kinda have an opinion about the difference with adventurer's guild rivalry thing. But again, it's more about which one is easier.
I think writing nuances of conflicts between guilds so that the reader can imagine in large scale are quite difficult to do.
Meanwhile, depicting conflicts between guilds are much easier to visualize in manga.
I mean, you can just put two groups facing looking mean at each other in a spread page, and you get the message.

Sure, you can just narrate them that guild A is in rival with guild B, some LN/WN did that (based on the manga that I read), but then the problem usually arise as the number of character increases.
So it's much easier to stay just one guild that basically just a quest taking spot.
Which I think how it is usually in an RPG/MMORPG games? (I don't play JRPG, and I've only played a few MMO, but that's how I remember it)

Tho, I can safely say that 80% of the isekai/reincarnation manga I've read are LN/WN adaptations, so the ratio is very unbalanced.

I don't quite understand what you mean in the "classmate gets transported" part. But in my opinion it is just a matter of novice writing. Just something easy and one dimensional storyline.
Again, I don't see much difference between most basic Shonen manga and LN/WN adaptations.

Part of this thread is to confirm if my thoughts were correct, so any input is good. I would say that yeah, Shonen can be very one-dimensional, on the same level as LN/WNs. As I mentioned or was trying to get at, I think it's more of an ideological difference than how nuanced or complex the message is. The main point about adventurer's guilds isn't just about there only being one versus many; like how I said with Hunter X Hunter which has an adjacent concept, there is only one Hunter Organization; the difference is framing.

A "guild" or organization even in basic Shonen manga is usually depicted, even in more dark or depressing settings, as a device by which the protagonist can achieve their ideals or dreams, and sometimes revenge. In WN/LN, it generally doesn't carry the same "weight", possibly because it is not the focus of the story despite us returning to it over and over in many cases. The guild is mainly a plot device by which the protagonist is sent from place to place and perhaps a method for them to gain increasing amounts of fame.

In a way, I think that in the average isekai story (at least the ones we see today, and maybe wn/lns in general), the protagonist has already been considered to have achieved their "dream"; they already are powerful, they already are free from the burdens of their society. The rest of the story often proceeds as if the protagonist no longer has things that they want but need to struggle to have, as everything they want to achieve is inevitable or has already happened. There are story arcs, but there isn't really an "end"; there can't be an end because there is no actual endpoint.
I find that I enjoy isekai a lot more when they break out of this "dream" concept; not that it couldn't still be a power fantasy or edgy or whatever other things people dislike about isekai but when the protagonist is confronted with the reality of the new world they live in and as opposed to just going with the flow, they grapple with it, possibly fight against it; and grow as a person.
Honestly I'm too burnt out today to explain the specifics of this.