winrt::init_apartment(multithreaded) causes QFileDialog::getOpenFileName to get stuck

#include <QApplication>
#include <QFileDialog>
#include <QMainWindow>
#include <QPushButton>

#include <winrt/Windows.Foundation.h>
int main(int argc, char *argv[])
{
   // equivalent to init_apartment(apartment_type::multi_threaded): 
    winrt::init_apartment();

    QApplication a(argc, argv);
    QMainWindow w;
    w.show();
    QFileDialog::getOpenFileName(&w);
    return a.exec();
}

cmake_minimum_required(VERSION 3.19)
project(test-bug-winrt LANGUAGES CXX)

find_package(Qt6 6.5 REQUIRED COMPONENTS Core Widgets)

set(CMAKE_CXX_STANDARD 20)
qt_standard_project_setup()

qt_add_executable(test-bug-winrt
    WIN32 MACOSX_BUNDLE
    main.cpp
    mainwindow.cpp
    mainwindow.h
)

target_link_libraries(test-bug-winrt
    PRIVATE
        Qt::Core
        Qt::Widgets
        RuntimeObject
)

QWindowsContext: OleInitialize() failed:  "COM error 0x80010106: Cannot change thread mode after it is set."

Thread 1 (Thread 12844.0x552c):
#0  0x00007ffe14602654 in ntdll!ZwWaitForMultipleObjects () from C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#1  0x00007ffe11c3e5f3 in WaitForMultipleObjectsEx () from C:\WINDOWS\System32\KernelBase.dll
No symbol table info available.
#2  0x00007ffe13ea73a4 in combase!CoUnloadingWOW () from C:\WINDOWS\System32\combase.dll
No symbol table info available.
#3  0x00007ffe13e9211b in combase!InternalSetOleThunkWowPtr () from C:\WINDOWS\System32\combase.dll
No symbol table info available.
#4  0x00007ffe13ea2abb in combase!CoInitializeSecurity () from C:\WINDOWS\System32\combase.dll
No symbol table info available.
#5  0x00007ffe13ea25a3 in combase!CoInitializeSecurity () from C:\WINDOWS\System32\combase.dll
No symbol table info available.
#6  0x00007ffe13e95f83 in combase!InternalCStdIdentityGetIProxyManager () from C:\WINDOWS\System32\combase.dll
No symbol table info available.
#7  0x00007ffe12a45a91 in RPCRT4!NdrClientCall3 () from C:\WINDOWS\System32\rpcrt4.dll
No symbol table info available.
#8  0x00007ffe12a455fd in RPCRT4!NdrClientCall3 () from C:\WINDOWS\System32\rpcrt4.dll
No symbol table info available.
#9  0x00007ffdfb0ab09e in OneCoreUAPCommonProxyStub!GetProxyDllInfo () from C:\Windows\System32\OneCoreUAPCommonProxyStub.dll
No symbol table info available.
#10 0x00007ffdbac15ba8 in QWindowsNativeFileDialogBase::doExec(HWND__*) () from D:\msys64\clang64\share\qt6\plugins\platforms\qwindows.dll
No symbol table info available.
#11 0x00007ffdbac1ddf5 in QWindowsDialogHelperBase<QPlatformFileDialogHelper>::exec() () from D:\msys64\clang64\share\qt6\plugins\platforms\qwindows.dll
No symbol table info available.
#12 0x00007ffd8d81bd46 in QDialog::exec() () from D:\msys64\clang64\bin\Qt6Widgets.dll
No symbol table info available.
#13 0x00007ffd8d82dd48 in QFileDialog::getOpenFileUrl(QWidget*, QString const&, QUrl const&, QString const&, QString*, QFlags<QFileDialog::Option>, QList<QString> const&) () from D:\msys64\clang64\bin\Qt6Widgets.dll
No symbol table info available.
#14 0x00007ffd8d82db08 in QFileDialog::getOpenFileName(QWidget*, QString const&, QString const&, QString const&, QString*, QFlags<QFileDialog::Option>) () from D:\msys64\clang64\bin\Qt6Widgets.dll
No symbol table info available.
#15 0x00007ff773be1727 in qMain (argc=1, argv=0x56dd50) at D:/dev/test-bug-winrt/main.cpp:14
        a = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr$QObject = 0x7ffd8da117f0 <vtable for QApplication+16>, static staticMetaObject = {d = {superdata = {direct = 0x0, indirect = 0x0}, stringdata = 0x7ffd8cb04480 <vtable for QObject+2624>, data = 0x7ffd8cb04370 <vtable for QObject+2352>, static_metacall = 0x7ffd8c840660 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7ffd8cb04500 <vtable for QObject+2752>, extradata = 0x0}}, d_ptr = <incomplete type>}, static staticMetaObject = {d = {superdata = {direct = 0x0, indirect = 0x7ffd8c76fe00 <QMetaObject const* QMetaObject::staticMetaObject<QObject::staticMetaObject>()>}, stringdata = 0x7ffd8cafc338 <vtable for QCoreApplication+1440>, data = 0x7ffd8cafc1b0 <vtable for QCoreApplication+1048>, static_metacall = 0x7ffd8c7ee840 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7ffd8cafc4a0 <vtable for QCoreApplication+1800>, extradata = 0x0}}, static self = 0x14fdc8}, static staticMetaObject = {d = {superdata = {direct = 0x0, indirect = 0x7ffd8cd900c0 <QMetaObject const* QMetaObject::staticMetaObject<QCoreApplication::staticMetaObject>()>}, stringdata = 0x7ffd8d39a354 <vtable for QGuiApplicationPrivate+4332>, data = 0x7ffd8d39a064 <vtable for QGuiApplicationPrivate+3580>, static_metacall = 0x7ffd8cd8eb00 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7ffd8d39a6e8 <vtable for QGuiApplicationPrivate+5248>, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x0, indirect = 0x7ffd8d590040 <QMetaObject const* QMetaObject::staticMetaObject<QGuiApplication::staticMetaObject>()>}, stringdata = 0x7ffd8da11e00 <vtable for QApplication+1568>, data = 0x7ffd8da11c78 <vtable for QApplication+1176>, static_metacall = 0x7ffd8d58f2a0 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7ffd8da11f98 <vtable for QApplication+1976>, extradata = 0x0}}}
        w = {<QWidget> = {<QObject> = {_vptr$QObject = 0x7ffd8daae020 <vtable for QMainWindow+16>, static staticMetaObject = {d = {superdata = {direct = 0x0, indirect = 0x0}, stringdata = 0x7ffd8cb04480 <vtable for QObject+2624>, data = 0x7ffd8cb04370 <vtable for QObject+2352>, static_metacall = 0x7ffd8c840660 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7ffd8cb04500 <vtable for QObject+2752>, extradata = 0x0}}, d_ptr = <incomplete type>}, <QPaintDevice> = {_vptr$QPaintDevice = 0x7ffd8daae1d8 <vtable for QMainWindow+456>, painters = 0}, static staticMetaObject = {d = {superdata = {direct = 0x0, indirect = 0x7ffd8d59d6f0 <QMetaObject const* QMetaObject::staticMetaObject<QObject::staticMetaObject>()>}, stringdata = 0x7ffd8da1a350 <vtable for QWidget+5712>, data = 0x7ffd8da19ad0 <vtable for QWidget+3536>, static_metacall = 0x7ffd8d5eee60 <QWidget::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7ffd8da1ab48 <vtable for QWidget+7752>, extradata = 0x0}}, data = 0x5d86d0}, static staticMetaObject = {d = {superdata = {direct = 0x0, indirect = 0x7ffd8d581ca0 <QMetaObject const* QMetaObject::staticMetaObject<QWidget::staticMetaObject>()>}, stringdata = 0x7ffd8daae588 <vtable for QMainWindow+1400>, data = 0x7ffd8daae34c <vtable for QMainWindow+828>, static_metacall = 0x7ffd8d745830 <QMainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x7ffd8daae840 <vtable for QMainWindow+2096>, metaTypes = 0x7ffd8daae860 <vtable for QMainWindow+2128>, extradata = 0x0}}}
#16 0x00007ff773be4705 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at D:/W/B/src/mingw-w64/mingw-w64-crt/crt/crtexewin.c:66
        lpCmdLine = 0x569547 ""
        nShowCmd = 0
        hInstance = <optimized out>