

Your question, “What features does the Windows version of Calibre have that the Linux version not have?” cannot be answered without accepting an unargued premise: that the windows version has more features than the Linux version.
No one was saying that, so your question is begging the question.
That is what begging the question means in the uk, unless I’m mistaken.
Some context, which you may or may not be aware of, that makes the original comment funny, is that recently, Calibre, which had been a very boring piece of software, has started including a bunch of AI features. So there are some new forks that intend to make a drop in replacement for Calibre without the unwanted features.



I think this is the point of Debian stable, and also why some devs hate Debian stable.