Segfault on Linux when using mne_qt_browser (Python 3.12/meta classes)

The following example results in a segfault when using PySide ≥ 6.7.0:

import PySide6
from mne_qt_browser import _pg_figure

Note that this example requires the mne-qt-browser package (in addition to PySide6).

I think what's happening here is that the second import also tries to create a Qt app, which apparently produces a segfault with PySide ≥ 6.7.0. The example works with PySide 6.6.3 (and possibly also previous versions). Interestingly, PySide 6.6.3.1 does not work either, but at least it does not segfault.