It's hard to say precisely. Different sources could have different counts. I suggest looking at dedicated manga tracking sites or following the official announcements from the publisher.
Changing a novel chapter usually required the following steps:
1. Make sure that the chapter you want to edit is a part of the entire story, not the entire chapter.
2. Read the chapter to understand the content.
3 Find the line or paragraph you want to change, usually in the first line or column.
4. Remove or change the content that needs to be modified.
Re-read the entire chapter to make sure that the revised content is consistent with the structure and overall plot of the chapter.
6. Resubmit the chapter after completing the revision.
When editing a novel, one had to be careful not to change the plot or the character's behavior or decisions so as not to disrupt the overall logic and rhythm of the story. In addition, it is best to hire an experienced editor or author to review the changes to ensure that the changes meet the quality standards of the novel.
Well, determining which manga chapter the JJK anime is on is a bit complex. Different arcs and storylines might have different alignments. It's best to consult dedicated manga and anime forums for detailed discussions and clarifications.
I'm not sure exactly when the next chapter of the JJK manga will be released. You might want to keep an eye on the official manga website or social media channels for the latest updates.