before writing a bug report, I wanted to ask here about it:
I just updated to plasmashell 6.6.0 and it advertises for the new theme Fedora.
Afaics the two themes Breeze and Fedora are completely identical on my system.
So that Fedora can at least provide its own wallpaper as branding.
There’s also Fedora’s own icon which is used by default for the app launcher. That gets set up by the script /usr/share/plasma/look-and-feel/org.fedoraproject.fedora.desktop/contents/plasmoidsetupscripts/org.kde.plasma.kicker.js.