I recently freshly installed Manjaro Gnome. I find that camera in Cheese is flickering and also taking a photo hangs the Application.
Also when I try to remove it, it says it has some dependency issue with gnome-control-centre.
If I run Cheese from Terminal it shows the following.
(cheese:2657): cheese-WARNING **: 17:14:05.128: Internal GStreamer error: code not implemented. Please file a bug at https://gitlab.freedesktop.org/gstreamer/gstreamer/issues/new.: ../gst-plugins-base/gst-libs/gst/video/gstvideofilter.c(296): gst_video_filter_transform (): /GstCameraBin:camerabin/GstViewfinderBin:vf-bin/GstVideoConvert:vfbin-csp:
invalid video buffer received
Hi I came across the same issue and cannot understand why the Official repo Cheese is not working and has flickering. However the Flatpak one is working fine. Maybe give that a try. I think it’s a bug with gnome 40 or something. I’m not sure.