Bug#949297:

[Archisman Panigrahi]

Someone (https://gitlab.gnome.org/GNOME/cheese/-/issues/52#note_913663)
confirmed that the patched package (
https://launchpad.net/~apandada1/+archive/ubuntu/cheese-headerbar-buster)
fixes the issue in KDE in Debian Buster 10.5.

However, this is only a workaround. Please consider applying the patch to
the official Debian package for Cheese.
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