The Demon Slayer anime mostly follows the manga closely. There are only a few instances where they might add a bit more detail or change the order of events slightly to make the story more engaging for the viewers.
The Demon Slayer anime is quite close to the manga, but there are a few differences here and there. Mainly in some added details and minor character developments.
Overall, the Demon Slayer anime follows the manga quite closely. However, for the sake of animation effects and storytelling, there are a few tweaks and added details. But these don't change the core plot.
In general, the Demon Slayer manga and anime are closely related. Some scenes might be presented differently for visual or pacing reasons, but the core plot and characters remain the same. It's mostly a faithful adaptation.
The Demon Slayer manga is quite extensive. It has a substantial number of chapters that tell a rich and engaging story. To be precise, it has over 200 chapters.