Add screens in reverse order

void QWaylandDisplay::registry_global(uint32_t id, const QString &interface, uint32_t version)
{
    Q_UNUSED(version);

    struct ::wl_registry *registry = object();

    if (interface == QStringLiteral("wl_output")) {
        QWaylandScreen *screen = new QWaylandScreen(this, version, id);
        mScreens.append(screen);
        // We need to get the output events before creating surfaces
        forceRoundTrip();
#ifndef Q_OS_SYLIXOS // Adding screens here will result in an error in order
        mWaylandIntegration->screenAdded(screen);
#endif
    ...

file: qt5\qtwayland\src\client\qwaylanddisplay.cpp

Maybe add screens here:
QWaylandDisplay::QWaylandDisplay(QWaylandIntegration *waylandIntegration)
    : mWaylandIntegration(waylandIntegration)
{
    ...
    struct ::wl_registry *registry = wl_display_get_registry(mDisplay);
    init(registry);

    mWindowManagerIntegration.reset(new QWaylandWindowManagerIntegration(this));

    forceRoundTrip();

#ifdef Q_OS_SYLIXOS
    foreach (QWaylandScreen *screen, mScreens) {
        mWaylandIntegration->screenAdded(screen);
    }
#endif
}