I understand your frustration Jamie S Reich, but I have to admit that I love OneDrive.
The issue we are discussing here must have something to do with Samsung's system and its relationship with OneDrive. Samsung Gallery will now back-up ALL of your photos to OneDrive and these photos can be seen in the folder marked Samsung Gallery in OneDrive.
However it means that Camera Upload button will disappear.
Media Sync for some reason will not stay on and so only works for a short time but this is nothing to do with OneDrive it must be to do with the Android system or maybe Samsung.
So in summary, all photos rather than just new ones will automatically be backed up to OneDrive and appear in the Samsung Gallery folder in OneDrive. The other difference is that when you delete photos from Samsung Gallery they will also be deleted on your
phone, this was not the case before with Camera Upload. So in short, we have the same facility as before, which some would argue is better, it just means that things work slightly differently.