kirion25

> With a decent file manager and an hour or so

An hour? You've made my case. It takes at most a couple of minutes for importing hundreds of books in Calibre. Metadata retrieval is automatic (from the file itself and/or online). Everything happens in a few clicks.

With a file manager, you'll probably only be able to find a book from its author, and title. If you have a small collection, this is fine.

When your collection grows though, issues start to show up. Being able to sort, and find a book based on other information becomes much more useful: date of publication, genre, custom tags, etc... While you could always integrate these in your filename/directory structure, with the help of symlinks, it's very cumbersome to manage and use.

You seem to have forgotten the extremely agressive marketing from Google. At some point, practically all major free software was bundled with Chrome, which installed by default. It was almost similar to malware in its persistence, and adopted many dark patterns just for the opportunity to get on your PC.