I have this error in Qt 6.2.0:

Qt3D.Renderer.OpenGL.Backend: bool Qt3DRender::Render::OpenGL::GraphicsContext::makeCurrent(QSurface*) makeCurrent failed

I created "Qt QWidgets Application". I deleted the Widget class. I added this modules in .pro: QT += 3dcore 3dextras

main.cpp

#include <QtWidgets/QApplication>
#include <Qt3DExtras/Qt3DWindow>

class Widget : public Qt3DExtras::Qt3DWindow
{
public:
    Widget()
    {
        setTitle("Qt3D");
        resize(500, 500);
    }
};

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    return a.exec();
}