Often, it's a matter of production costs or the desire to focus on the most popular storylines. Sometimes, licensing issues or creative decisions by the anime team can also cause certain arcs to be left out.
The similarities are that they both follow the main plotlines. But the anime arcs might have some added filler episodes or minor changes for pacing and visual effect.
There are some differences. In the manga, the pace might be faster, and some details could be presented differently than in the anime.
The Boruto anime incorporates the manga arcs quite well. It keeps the key elements and plot points intact.
The adaptation of Bleach manga arcs to anime is a mixed bag. Some parts are very faithful, but in others, there are tweaks for pacing, visual effects, or to add more depth to the story. However, the core elements and major plot points usually remain intact.
Manga-only arcs in One Piece usually have more complex plot developments and unexpected twists. They also give the author more freedom to explore creative storylines that might not fit within the constraints of the main narrative.
There are some differences. For example, in the anime, there might be more filler episodes that don't exist in the manga.
The manga arcs tend to be more detailed and have some storylines that might not be fully covered in the anime. Also, the pacing can vary.
The DBS manga arcs and the anime have some differences. In the manga, the story might progress a bit faster, and some plot details could be presented differently.
The bleach manga and anime arcs have quite a few similarities. The main plot points and character developments are often consistent. But there are some differences, like added scenes or minor tweaks in the anime for better visual presentation.
There are some differences. In the manga, the story might progress a bit faster, and some details could be presented differently.