Whats the diffrence between the LN and the WN?
Eventhough some scenes were diffrent, I don't think there's much difference in the general direction of the story, events were also not re-arranged.
And LN also has a lot of exclusive content making it meatier.
For example. If you're up to date in the manga, the latest translated chapters are about the magician woman who wants to disect selina. That mini-arc isn't in the WN. But in my opinion, it's really not essential in the overall story.