When you read documentation inside emacs, what is your prefered format?
For me it is in this order:
info, man, epub (nov.el), devdocs.
Are there any texinfo pages you don't read in info format because you need images? I think info pages don't contain images even when the source texinfo file has them (happy to be proved wrong).
Right now I am also trying to solve searching through my epub files for information. Best I've found so far was bookmarks+ and maybe citar.