I don't care about chapter info generally, but do like to have at least a rough idea of where I am in the book overall. The progress bar in recent Kobo firmware is perfectly adequate for that purpose imo. Page numbers in ebooks are so arbitrary that I use them only for my Goodreads challenge, selecting whichever ebook edition has the biggest "page size" to inflate my page count stats for the year, since I don't read paper books
