I’m also a Fedora KDE user and I agree with you. The only real gripe I have with it is that if you don’t know about the full version of RPM Fusion, you’ll get frustrated that certain things are missing or don’t work right, and the GUI button to enable third-party repos after installation isn’t enough. I personally just skip that button and enable the full version following the directions on their site and then use Discover to enable Flathub.