On my Android, I have a mobile app called Libera. It lets me able to see how many pages per chapter. It also shows reading progress for chapters and books within a complete series on top as well. Calibre does not have this at all. It only shows the table of contents and percentage of reading progress. I would like Calibre to have this feature that Libera has. Here is a picture of this feature from Libera:
https://drive.google.com/file/d/1y5b...ew?usp=sharing