What I guess I'm trying to say is: if you took someone who has never used a computer or web browser before and gave them an install of Fedora KDE with Qupzilla as the default browser, I believe you are correct: they wouldn't care and just use Qupzilla. But I suspect most *potential* Fedora users don't fall into that category these days.(Please note: I'm not saying Qupzilla shouldn't be the default browser for other, ideological reasons. But if the goal is to convert a large portion of Fedora KDE users to Qupzilla, I suspect that isn't going to succeed).