You can install the app Kdenlive (https://kdenlive.org) from flathub (https://flathub.org). When starting the app while using Nvidia’s official driver, the app crashes with the following backtrace:
#0 0x00000035e323304f in raise () at /lib/libc.so.6
#1 0x00000035e323447a in abort () at /lib/libc.so.6
#2 0x00007fce37b1703c in () at /lib/libQt5Core.so.5
#3 0x00007fce37b179f9 in () at /lib/libQt5Core.so.5
#4 0x00007fce37b125cd in qt_int_sqrt(unsigned int) () at /lib/libQt5Core.so.5
#5 0x00007fce37cfca95 in QCoreApplicationPrivate::checkReceiverThread(QObject*) () at /lib/libQt5Core.so.5
#6 0x00007fce3969a3ec in QApplication::notify(QObject*, QEvent*) () at /lib/libQt5Widgets.so.5
#7 0x00007fce37cfd04c in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/libQt5Core.so.5
#8 0x00007fce380942ce in QOffscreenSurface::create() () at /lib/libQt5Gui.so.5
#9 0x00000000008198ad in GLWidget::initializeGL() (this=0x3a4a440) at /run/build/kdenlive/src/monitor/glwidget.cpp:152
#10 0x0000000000826ce6 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (GLWidget::*)()>::call(void (GLWidget::*)(), GLWidget*, void**) (f=(void (GLWidget::*)(GLWidget * const)) 0x8197bc <GLWidget::initializeGL()>, o=0x3a4a440, arg=0x7fce04c6ab40) at /usr/include/QtCore/qobjectdefs_impl.h:136
#11 0x0000000000826ad4 in QtPrivate::FunctionPointer<void (GLWidget::*)()>::call<QtPrivate::List<>, void>(void (GLWidget::*)(), GLWidget*, void**) (f=(void (GLWidget::*)(GLWidget * const)) 0x8197bc <GLWidget::initializeGL()>, o=0x3a4a440, arg=0 x7fce04c6ab40) at /usr/include/QtCore/qobjectdefs_impl.h:169
This does not happen, when using the Mesa driver (nouveau or other).
I’m not sure, but guess it’s a bug in Kdenlive, so I have informed the maintainer about it, but he doesn’t know how to fix it. I’m posting this here in the hope that maybe someone from Nvidia or another knowledgeable developer has some idea.