Dependencies among SignalApp and where the ICC profiles are created from which includes the Google copyright.
https://media.infosec.exchange/infosec.exchange/media_attachments/files/110/989/239/354/120/776/original/784eef0aacd6c835.png
Digging a little bit in the some ICC profiles added in signal-app, I updated the original issue and there is clearly an issue where new ICC profiles are created from the Google skia library.
https://github.com/signalapp/Signal-Desktop/issues/6031#issuecomment-1702432836
This issue only appears when the media-quality is to high. Maybe an allow-list strategy like the mat2 tool written by @jvoisin would be better to be sure that new metadata created are discarded by default.
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