QQuickWidget not rendering scene on macOS (intel and M1)

On a macOS client (intel x86 as well as M1 arm are affected) I can sporadically get into a situation where the following error is printed to the console:

> UNSUPPORTED (log once): POSSIBLE ISSUE: unit 0 GLD_TEXTURE_INDEX_2D is unloadable and bound to sampler type (Float) - using zero texture because texture unloadable

In which case any application that uses QQuickWidget will fail to render the widget and instead show a blank, see-through window frame.
The bug seems to occur completely at random times as long as the OpenGL-Backend is used, but makes any application useless.

A similar issue was already reported (and fixed) for the QML Video player:

• https://bugreports.qt.io/browse/QTBUG-89803