Using `QProcess::startDetached()` keeps Zygote processes around after application quits

#include <QtWidgets/QApplication>
#include <QtWebEngineWidgets/QWebEngineView>
#include <QtCore/QProcess>
#include <QtCore/QTimer>

int main(int argc, char *argv[]) {
    QApplication app(argc, argv);
    QWebEngineView view;
    view.load(QUrl("https://qt.io"));
    view.show();

    QProcess::startDetached("qtcreator");
    QTimer::singleShot(5000, &app, &QApplication::quit);
    return app.exec();
}

/usr/lib/qt6/QtWebEngineProcess --type=zygote --no-zygote-sandbox --application-name=qtbug-zygote --webengine-schemes=qrc:sV --lang=en
/usr/lib/qt6/QtWebEngineProcess --type=zygote --application-name=qtbug-zygote --webengine-schemes=qrc:sV --lang=en