It varies. Some parts are very close, while others have some noticeable differences.
It depends. Sometimes the manhwa follows the source closely, but there can be some creative changes.
Not much. The Berserk manga mostly sticks close to the original concepts and storylines.
It varies. Some Lezhin Comics stick closely to the source, while others might take more liberties.
The Overlord manga closely follows the original. There are occasional tweaks, but they don't significantly impact the plot or the essence of the story. Fans generally appreciate how closely it adheres to the source.
Not much. The Dan Machi manga mostly sticks close to the source, with just a few tweaks here and there.
It varies. Sometimes it sticks closely, but there can be differences in plot details and character development.
It varies quite a bit. Some key plot points and character developments are different in the light novel compared to the source.
It follows pretty closely. Most of the key plot points and character developments are in line with the original.
It's quite similar. The cartoon mostly sticks to the main plot and characters from the source.
Overall, the JJK manga remains relatively close to the source material. There might be some minor adjustments for artistic or narrative purposes, but the main essence is intact. The characters and major events are presented consistently.