Currently, unless you exit the chapter directly, it will remain marked as unread even if you have already reached the end of the chapter, and this is not necessarily a good thing if you want to move to another chapter without exiting that one (move from the chapter list tab inside the reader).
Other details
Chapter list tab inside reader
Acknowledgements
[X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.
[X] I have written a short but informative title.
[X] If this is an request for a feature in the original Tachiyomi, I am opening because multiple versions of Yōkai have been released without this feature.
[X] If this is an issue with an extension, or a request for an extension, I should be contacting the extensions repository's maintainer/support for help.
Describe your suggested feature
Currently, unless you exit the chapter directly, it will remain marked as unread even if you have already reached the end of the chapter, and this is not necessarily a good thing if you want to move to another chapter without exiting that one (move from the chapter list tab inside the reader).
Other details
Acknowledgements