When saving an image in Affinity Photo that has an ‘sRGB v1.31 (Canon)’ colour profile, Affinity Photo changes the EXIF metadata from ‘sRGB’ to ‘Uncalibrated’.
The Affinity Photo default export presets are set to use the document profile by default, this means that when saving an image that already has an ‘sRGB v1.31 (Canon)’ colour profile embedded in it, the document colour profile remains ‘sRGB v1.31 (Canon)’ when exported. However, Affinity Photo changes the EXIF metadata field from ‘sRGB’ to ‘Uncalibrated’, even though it’s still an sRGB image with an sRGB colour profile.
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Windows 10 – 1903 (18362.418)
Affinity Photo – 1.7.3.481