I think it would be worth it to add two presets in the Audio category in Export. One for ALAC and the another for FLAC.
FLAC I think goes without saying why should it be included as it’s so commonly known already.
ALAC is the codec that is used in iTunes and other music apps so I think it is important enough to include.
As for ProRes: Currently, the ProRes preset in the Intermediate list uses vprofile=2 which is from what I understand ProRes 422. However, I believe ProRes 422 is not visually lossless. ProRes 422 HQ is. So as an intermediate shouldn’t the preset be updated to be ProRes 422 HQ which is vprofile=3?