Run:
10:28:19: Starting /home/qt/QDS_installations/44_RC_OSS/Tools/QtDesignStudio/qt6_design_studio_reduced_version/bin/qml2puppet-4.4.0 --qml-runtime -I /home/qt/Documents/QtDesignStudio/examples/EffectDemo/imports -I /home/qt/Documents/QtDesignStudio/examples/EffectDemo/asset_imports /home/qt/Documents/QtDesignStudio/examples/EffectDemo/Screen01.ui.qml...
QML debugging is enabled. Only use this in a safe environment.
Info: Starting QML Runtime ((null):0, (null))
Warning: CoreApp is not initialized! Falling back to QGuiApplication! ((null):0, (null))
Debug: DirectionalBlur is not supported with Qt 6 (qrc:/qt-project.org/imports/QtQuick/Studio/Effects/DirectionalBlurEffect.qml:41, expression for onCompleted)
Debug: GaussianBlur is not supported with Qt 6 (qrc:/qt-project.org/imports/QtQuick/Studio/Effects/GaussianBlurEffect.qml:40, expression for onCompleted)
10:28:23: /home/qt/QDS_installations/44_RC_OSS/Tools/QtDesignStudio/qt6_design_studio_reduced_version/bin/qml2puppet-4.4.0 crashed.

Live preview:

10:28:50: Starting /home/qt/QDS_installations/44_RC_OSS/Tools/QtDesignStudio/qt6_design_studio_reduced_version/bin/qml2puppet-4.4.0 --qml-runtime -I /home/qt/Documents/QtDesignStudio/examples/EffectDemo/imports -I /home/qt/Documents/QtDesignStudio/examples/EffectDemo/asset_imports /home/qt/Documents/QtDesignStudio/examples/EffectDemo/Screen01.ui.qml -qmljsdebugger=file:/tmp/QtDesignStudio-OQbMEe/qtc-socket.VfsdpD,block,services:QmlPreview,DebugTranslation...
QML debugging is enabled. Only use this in a safe environment.
Info: Starting QML Runtime ((null):0, (null))
Warning: CoreApp is not initialized! Falling back to QGuiApplication! ((null):0, (null))
Debug: QML Debugger: Connecting to socket /tmp/QtDesignStudio-OQbMEe/qtc-socket.VfsdpD... ((null):0, (null))
Debug: DirectionalBlur is not supported with Qt 6 (qrc:/qt-project.org/imports/QtQuick/Studio/Effects/DirectionalBlurEffect.qml:41, expression for onCompleted)
Debug: GaussianBlur is not supported with Qt 6 (qrc:/qt-project.org/imports/QtQuick/Studio/Effects/GaussianBlurEffect.qml:40, expression for onCompleted)
Debug: DirectionalBlur is not supported with Qt 6 (qrc:/qt-project.org/imports/QtQuick/Studio/Effects/DirectionalBlurEffect.qml:41, expression for onCompleted)
Debug: GaussianBlur is not supported with Qt 6 (qrc:/qt-project.org/imports/QtQuick/Studio/Effects/GaussianBlurEffect.qml:40, expression for onCompleted)
Debug: DirectionalBlur is not supported with Qt 6 (qrc:/qt-project.org/imports/QtQuick/Studio/Effects/DirectionalBlurEffect.qml:41, expression for onCompleted)
Debug: GaussianBlur is not supported with Qt 6 (qrc:/qt-project.org/imports/QtQuick/Studio/Effects/GaussianBlurEffect.qml:40, expression for onCompleted)
10:29:01: /home/qt/QDS_installations/44_RC_OSS/Tools/QtDesignStudio/qt6_design_studio_reduced_version/bin/qml2puppet-4.4.0 crashed.