Aside from being based on Fedora 39 now, KDE is now the official desktop environment replacing GNOME. The reasons why are in the article.
The GNOME version of Nobara still exists, but it’s going to be the vanilla version shipped without any extensions (probably because many of them broke after moving to Fedora 39)
While I don’t know the term hissy fit, switching distributions just because the default of a user-changeable setting is different is definitively a bit over the top.