Neovim-qt QGtk3Theme GLib-GIO-CRITICAL errors

With Fedora 39 nvim-qt emits these errors:

/usr/bin/nvim-qt -- --clean

QSocketNotifier: Can only be used with threads started with QThread

(nvim-qt:7689): GLib-GIO-CRITICAL **: 10:08:06.620: GFileInfo created without standard::icon

(nvim-qt:7689): GLib-GIO-CRITICAL **: 10:08:06.620: file ../gio/gfileinfo.c: line 1766 (g_file_info_get_icon): should not be reached

(nvim-qt:7689): GLib-GIO-CRITICAL **: 10:08:06.621: GFileInfo created without standard::icon
...

Using G_DEBUG=fatal-criticals I can get a stack trace of the error:

(gdb) run --nofork -- --clean
Starting program: /usr/bin/nvim-qt --nofork -- --clean
...
(nvim-qt:8170): GLib-GIO-CRITICAL **: 10:15:25.320: GFileInfo created without standard::icon

Thread 1 "nvim-qt" received signal SIGTRAP, Trace/breakpoint trap.
g_logv (log_domain=0x7ffff2ec5015 "GLib-GIO", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, 
    args=args@entry=0x7fffffffcd00) at ../glib/gmessages.c:1423
1423              g_private_set (&g_log_depth, GUINT_TO_POINTER (depth));                                               
(gdb) where
#0  g_logv (log_domain=0x7ffff2ec5015 "GLib-GIO", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, 
    args=args@entry=0x7fffffffcd00) at ../glib/gmessages.c:1423
#1  0x00007ffff5318463 in g_log (log_domain=log_domain@entry=0x7ffff2ec5015 "GLib-GIO", 
    log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, 
    format=format@entry=0x7ffff2ed0910 "GFileInfo created without standard::icon") at ../glib/gmessages.c:1461
#2  0x00007ffff2de1c3d in g_file_info_get_icon (info=<optimized out>) at ../gio/gfileinfo.c:1766
#3  0x00007fffe478af31 in QGtk3Interface::fileIcon (this=0x555555bd21e0, fileInfo=...) at qgtk3interface.cpp:693
#4  0x00007fffe47969fd in QGtk3Storage::fileIcon (this=<optimized out>, fileInfo=...) at qgtk3storage.cpp:249
#5  0x00007fffe479bb88 in QGtk3Theme::fileIcon (this=<optimized out>, fileInfo=..., iconOptions=...)
    at /usr/include/c++/13/bits/unique_ptr.h:199
#6  0x00007ffff7cd04ec in QFileIconProviderPrivate::getIcon (fi=..., this=0x555555c26030)
    at itemviews/qfileiconprovider.cpp:236
#7  QFileIconProvider::icon (this=<optimized out>, info=...) at itemviews/qfileiconprovider.cpp:247
#8  0x00007ffff7bfa79f in QFileInfoGatherer::getInfo (this=this@entry=0x555555a74ca0, fileInfo=...)
    at dialogs/qfileinfogatherer.cpp:332
#9  0x00007ffff7bf1971 in QFileSystemModelPrivate::node (this=this@entry=0x555555a74c10, path=..., 
    fetch=fetch@entry=true) at dialogs/qfilesystemmodel.cpp:481
#10 0x00007ffff7bf2a6f in QFileSystemModelPrivate::index (column=0, path=..., this=0x555555a74c10)
    at dialogs/qfilesystemmodel_p.h:230
#11 QFileSystemModel::setRootPath (this=this@entry=0x555555c296f0, newPath=...) at dialogs/qfilesystemmodel.cpp:1524
#12 0x000055555563de76 in NeovimQt::TreeView::handleDirectoryChanged (this=0x555555c296c0, args=...)
    at /usr/src/debug/neovim-qt-0.2.18-1.fc39.x86_64/src/gui/treeview.cpp:91
#13 0x00007ffff6ce8821 in QtPrivate::QSlotObjectBase::call (a=0x7fffffffd350, r=<optimized out>, this=0x555555d5ac70)
    at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#14 doActivate<false> (sender=0x555555b7ab80, signal_index=4, argv=0x7fffffffd350) at kernel/qobject.cpp:3925
#15 0x00007ffff6ce3747 in QMetaObject::activate (sender=<optimized out>, m=<optimized out>, 
    local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffffffd350) at kernel/qobject.cpp:3985
#16 0x000055555564b420 in NeovimQt::NeovimApi0::neovimNotification (this=<optimized out>, _t1=..., _t2=...)
    at /usr/src/debug/neovim-qt-0.2.18-1.fc39.x86_64/redhat-linux-build/src/neovim-qt_autogen/3NMJRBZ332/moc_neovimapi0.cpp:2747
#17 0x00007ffff6ce8821 in QtPrivate::QSlotObjectBase::call (a=0x7fffffffd470, r=<optimized out>, this=0x555555b7ac00)
    at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#18 doActivate<false> (sender=0x555555a11200, signal_index=4, argv=0x7fffffffd470) at kernel/qobject.cpp:3925
#19 0x00007ffff6ce3747 in QMetaObject::activate (sender=sender@entry=0x555555a11200, m=<optimized out>, 
    local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffffffd470) at kernel/qobject.cpp:3985
#20 0x000055555580a241 in NeovimQt::MsgpackIODevice::notification (_t2=..., _t1=..., this=0x555555a11200)
    at /usr/src/debug/neovim-qt-0.2.18-1.fc39.x86_64/redhat-linux-build/src/neovim-qt_autogen/EWIEGA46WW/moc_msgpackiodevice.cpp:276
#21 NeovimQt::MsgpackIODevice::dispatchNotification (this=0x555555a11200, nt=...)
--Type <RET> for more, q to quit, c to continue without paging--c
    at /usr/src/debug/neovim-qt-0.2.18-1.fc39.x86_64/src/msgpackiodevice.cpp:409
#22 0x000055555580a762 in NeovimQt::MsgpackIODevice::dataAvailable (this=0x555555a11200)
    at /usr/src/debug/neovim-qt-0.2.18-1.fc39.x86_64/src/msgpackiodevice.cpp:180
#23 0x00007ffff6ce8821 in QtPrivate::QSlotObjectBase::call (a=0x7fffffffd5a0, r=<optimized out>, this=0x555555b02e80)
    at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#24 doActivate<false> (sender=0x555555b287c0, signal_index=3, argv=0x7fffffffd5a0) at kernel/qobject.cpp:3925
#25 0x00007ffff6ce3747 in QMetaObject::activate (sender=sender@entry=0x555555b287c0, 
    m=m@entry=0x7ffff6f63be0 <QIODevice::staticMetaObject>, local_signal_index=local_signal_index@entry=0, 
    argv=argv@entry=0x0) at kernel/qobject.cpp:3985
#26 0x00007ffff6bff5e4 in QIODevice::readyRead (this=this@entry=0x555555b287c0) at .moc/moc_qiodevice.cpp:190
#27 0x00007ffff6c3c8df in QProcessPrivate::tryReadFromChannel (this=0x555555a69e70, channel=0x555555a69f80)
    at io/qprocess.cpp:1068
#28 0x00007ffff6c3cd04 in QProcessPrivate::_q_canReadStandardError (this=<optimized out>) at io/qprocess.cpp:1092
#29 QProcess::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7fffffffd770)
    at .moc/moc_qprocess.cpp:210
#30 0x00007ffff6ce89a8 in doActivate<false> (sender=0x555555b02f00, signal_index=3, argv=0x7fffffffd770)
    at kernel/qobject.cpp:3937
#31 0x00007ffff6ce3747 in QMetaObject::activate (sender=sender@entry=0x555555b02f00, 
    m=m@entry=0x7ffff6f67420 <QSocketNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, 
    argv=argv@entry=0x7fffffffd770) at kernel/qobject.cpp:3985
#32 0x00007ffff6ceb22d in QSocketNotifier::activated (this=this@entry=0x555555b02f00, _t1=..., _t2=<optimized out>, 
    _t3=...) at .moc/moc_qsocketnotifier.cpp:178
#33 0x00007ffff6ceba9b in QSocketNotifier::event (this=0x555555b02f00, e=<optimized out>)
    at kernel/qsocketnotifier.cpp:302
#34 0x00007ffff79aeb75 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x555555b02f00, 
    e=0x7fffffffd880) at kernel/qapplication.cpp:3640
#35 0x00007ffff6cb4548 in QCoreApplication::notifyInternal2 (receiver=0x555555b02f00, event=0x7fffffffd880)
    at kernel/qcoreapplication.cpp:1064
#36 0x00007ffff6cb4762 in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>)
    at kernel/qcoreapplication.cpp:1462
#37 0x00007ffff6d0750f in socketNotifierSourceDispatch (source=0x555555a6f060) at kernel/qeventdispatcher_glib.cpp:107
#38 0x00007ffff5312e5c in g_main_dispatch (context=0x7fffe0000ec0) at ../glib/gmain.c:3476
#39 g_main_context_dispatch_unlocked (context=0x7fffe0000ec0) at ../glib/gmain.c:4284
#40 0x00007ffff536ddd8 in g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x7fffe0000ec0, 
    block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4349
#41 0x00007ffff5310ad3 in g_main_context_iteration (context=0x7fffe0000ec0, may_block=1) at ../glib/gmain.c:4414
#42 0x00007ffff6d06a89 in QEventDispatcherGlib::processEvents (this=0x555555a6ecc0, flags=...)
    at kernel/qeventdispatcher_glib.cpp:423
#43 0x00007ffff6cb2f0b in QEventLoop::exec (this=this@entry=0x7fffffffdb20, flags=..., flags@entry=...)
    at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#44 0x00007ffff6cbb19b in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#45 0x00007ffff7160edd in QGuiApplication::exec () at kernel/qguiapplication.cpp:1863
#46 0x00007ffff79aeae9 in QApplication::exec () at kernel/qapplication.cpp:2832
#47 0x00005555556224df in ui_main (argc=<optimized out>, argv=<optimized out>)
    at /usr/src/debug/neovim-qt-0.2.18-1.fc39.x86_64/src/gui/main.cpp:40
#48 0x00007ffff644614a in __libc_start_call_main (main=main@entry=0x555555617600 <main(int, char**)>, 
    argc=argc@entry=4, argv=argv@entry=0x7fffffffdcf8) at ../sysdeps/nptl/libc_start_call_main.h:58
#49 0x00007ffff644620b in __libc_start_main_impl (main=0x555555617600 <main(int, char**)>, argc=4, 
    argv=0x7fffffffdcf8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, 
    stack_end=0x7fffffffdce8) at ../csu/libc-start.c:360
#50 0x0000555555617ae5 in _start ()

Is this the fault of QGtk3Theme?

If so where should this error be reported?

Update using QT_QPA_PLATFORMTHEME=gnome solves the GLib-GIO-CRITICAL errors:

QT_QPA_PLATFORMTHEME=gnome nvim-qt