kdeclarative.cpp line 106 engine->setNetworkAccessManagerFactory(new KIOAccessManagerFactory());

Used mostly indirectly through KDeclarative::QmlObject and KDeclarative::QmlObjectSharedEngine.

Option 1: hijack somehow in Qt 6 the engine setup to do this

Option 2: have a plugin interface for QmlObject and QmlObjectSharedEngine, provide implementation of that plugin inside of frameworkintegration (similar situation to the KMessageBoxDontAskAgainInterface trick)

Option 3: remove it b/c not needed anymore?