Regular crashes with qtwebengine-5.13.2

Both Qutebrowser and Falkon, which are QtWebengine based browsers are crashing quite regularly with Qt 13.2. 

The autogenerated bug from ABRT is here: https://bugzilla.redhat.com/show_bug.cgi?id=1812482

Copying relevant bits for convenience:

Version-Release number of selected component:
qt5-qtwebengine-5.13.2-3.fc32

Additional info:
reporter: libreport-2.12.0
backtrace_rating: 4
cgroup: 0::/user.slice/user-1000.slice/
user@1000.service
/gnome-launched-org.qutebrowser.qutebrowser.desktop-121339.scope
cmdline: /usr/lib64/qt5/libexec/QtWebEngineProcess --type=renderer --disable-gpu-memory-buffer-video-frames --enable-threaded-compositing --reduced-referrer-granularity --use-gl=egl --enable-features=AllowContentInitiatedDataUrlNavigations --disable-features=BackgroundFetch,MojoVideoCapture,SurfaceSynchronization,UsePdfCompositorServiceForPrint,UserActivationV2,VizDisplayCompositor --service-pipe-token=18211343968319505486 --lang=en-GB --webengine-schemes=qute:lL;qrc:sLV --num-raster-threads=4 --enable-main-frame-before-activation --service-request-channel-token=18211343968319505486 --renderer-client-id=52 --shared-files
crash_function: sandbox::CrashSIGSYS_Handler
executable: /usr/lib64/qt5/libexec/QtWebEngineProcess
journald_cursor: s=d12de937e2424e1d90815a84d42e5394;i=8720de;b=ba5732544711458ca24af0fcc48fc7df;m=158e96aa6f;t=5a0931399d54f;x=1eef69fb5e53156e
kernel: 5.6.0-0.rc4.git0.1.fc32.x86_64
mountinfo:
rootdir: /proc/121377/fdinfo
runlevel: N 5
type: CCpp
uid: 1000
 

Truncated backtrace:
Thread no. 1 (10 frames)
{{ #0 sandbox::CrashSIGSYS_Handler at ../../3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.cc:218}}
{{ #1 sandbox::Trap::SigSys at ../../3rdparty/chromium/sandbox/linux/seccomp-bpf/trap.cc:244}}
{{ #3 __clock_nanosleep at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48}}
{{ #4 __nanosleep at nanosleep.c:27}}
{{ #5 base::PlatformThread::Sleep at ./../../3rdparty/chromium/base/threading/platform_thread_posix.cc:233}}
{{ #6 base::subtle::SpinLock::LockSlow at ./../../3rdparty/chromium/base/allocator/partition_allocator/spin_lock.cc:97}}
{{ #7 WTF::StringImpl::CreateUninitialized(unsigned int, unsigned char*&)}}
{{ #8 WTF::StringImpl::Create(unsigned char const*, unsigned int)}}
{{ #9 WTF::String::String(char const*, unsigned long)}}
{{ #10 blink::ResourceRequest::ResourceRequest(blink::KURL const&)}}

The retrace server job has more information:
[https://retrace.fedoraproject.org/faf/reports/2854066/

]

```
$ rpm -qa qt wayland
gnome-session-wayland-session-3.36.0-2.fc32.x86_64
qt5-srpm-macros-5.13.2-2.fc32.noarch
libwayland-server-1.18.0-1.fc32.x86_64
vimiv-qt-0.6.1-1.fc32.x86_64
python-qt5-rpm-macros-5.13.2-5.fc32.noarch
qt5-qtdeclarative-5.13.2-2.fc32.x86_64
qt-4.8.7-52.fc32.x86_64
qt5-qttools-libs-help-5.13.2-5.fc32.x86_64
qt5-qtwebchannel-5.13.2-2.fc32.x86_64
qt5-qttools-libs-designer-5.13.2-5.fc32.x86_64
qt5-qtsensors-5.13.2-2.fc32.x86_64
qt5-qtserialport-5.13.2-2.fc32.x86_64
qt5-qtwebengine-freeworld-5.13.2-1.fc32.x86_64
qt-common-4.8.7-52.fc32.noarch
qt5-qtmultimedia-5.13.2-2.fc32.x86_64
qt5-qtconnectivity-5.13.2-2.fc32.x86_64
qt5-qtxmlpatterns-5.13.2-2.fc32.x86_64
qt5-qtwebengine-5.13.2-3.fc32.x86_64
python3-qt5-webengine-5.13.1-2.fc32.x86_64
libwayland-egl-1.18.0-1.fc32.x86_64
dbusmenu-qt-0.9.3-0.22.20160218.fc32.x86_64
qscintilla-qt5-2.11.2-10.fc32.x86_64
python3-sphinxcontrib-qthelp-1.0.2-6.fc32.noarch
qt5-qtbase-gui-5.13.2-4.fc32.x86_64
qt5-qtgamepad-5.13.2-2.fc32.x86_64
qt-x11-4.8.7-52.fc32.x86_64
python3-pyqt5-sip-4.19.21-1.fc32.x86_64
gstreamer1-plugins-good-qt-1.16.2-2.fc32.x86_64
xorg-x11-server-Xwayland-1.20.7-2.fc32.x86_64
qt5-qtbase-common-5.13.2-4.fc32.noarch
libwayland-cursor-1.18.0-1.fc32.x86_64
qt5-qtsvg-5.13.2-2.fc32.x86_64
qt5-qtwebkit-5.212.0-0.42.alpha3.fc32.x86_64
python3-matplotlib-qt5-3.2.1-1.fc32.x86_64
python3-qt5-5.13.2-5.fc32.x86_64
qt5-qtenginio-1.6.2-28.fc32.x86_64
ibus-qt-1.3.3-24.fc32.x86_64
libwayland-client-1.18.0-1.fc32.x86_64
qt5-qtbase-5.13.2-4.fc32.x86_64
adwaita-qt4-1.1.1-3.fc32.x86_64
adwaita-qt5-1.1.1-3.fc32.x86_64
qt5-qtx11extras-5.13.2-2.fc32.x86_64
qt5-qttools-common-5.13.2-5.fc32.noarch
qt5-qtwayland-5.13.2-3.fc32.x86_64
sni-qt-0.2.7-0.4.20170217.fc32.x86_64
qt-settings-32.0-3.fc32.noarch
python3-qt5-webkit-5.13.2-5.fc32.x86_64
qt5-qtlocation-5.13.2-2.fc32.x86_64
python3-qt5-base-5.13.2-5.fc32.x86_64
qt5-qtwebsockets-5.13.2-2.fc32.x86_64
```

I've also removed the "freeworld" package and it still crashes, so it shouldn't be proprietary codec related.

I'm happy to provide more information if needed. Please do let me know what the necessary steps are, though.