The Haruhi manga is quite faithful to the light novel. It captures the essence and major events from the source material. Though there could be slight variations to suit the medium of manga, the overall resemblance is significant.
Yes, generally it does. The manga of Haruhi is based on the light novel and tries to follow the main plotlines and characterizations presented in the novels. However, as with any adaptation, there are some minor differences here and there to fit the manga format better.
Mostly, yes. It adheres to the fundamental story of the light novel.
It depends. Sometimes it follows closely, but there are also some differences to make it more suitable for the anime format.
It follows pretty closely. There are some minor differences, but they don't change the main plot and character developments.
Overall, Boruto adheres pretty well to the manga. Some minor adjustments are made for better visual presentation or to fit the animation format, but the core story remains intact.
It follows to a considerable extent. There are some differences, but they don't significantly change the main plot and character development.
Nana follows the manga quite closely. The story arcs and character traits are maintained, although there could be some slight differences in the presentation to suit the medium of animation or for creative purposes.
Not really. There are quite a few differences between Excarina and the manga.
It follows to a considerable extent. But there are still some differences, especially in the details and pacing.
It follows quite closely. The anime of No.6 mostly adheres to the manga plot, with just a few minor differences that don't significantly change the main story.