Created attachment 186607 [details] screenshot debian 14 forky new-installed kde-plasma by tasksel
Probably missing some split QML package qml6-qmlmodule-qtnetwork or something like that. Either way, seems to be a distro packaging issue.
We could probably use ecm_find_qmlmodule here. Debian does not seem to list qml6-module-qtnetwork (separated out of qtdeclarative as a dependency).
Yep. Please report this to Debian.