Created attachment 175774 [details] Squished notification Today's git master, Qt 6.8.0, Fedora 41 KDE. See screenshot. Seems to happen completely randomly. When it happens, clicking on the notification restores the proper appearance.
Should be fixed by David Edmundson with https://codereview.qt-project.org/c/qt/qtwayland/+/594907 in Qt 6.8.1