I understand it's easier to use the ego for commenting here or being a majority vs minority but the case is that the diagonal angle exists in every person,in some it looks more "diagonal" and in some it looks less diagonal. for more info
Squat Mechanics: A Deep Analysis | T Nation Ofcourse deadlifts are not squats but the timing of when you straighten your back is the same as the squat [this was my primary question which was not answered at all,by the way. only the aspect of how it looks like was answered althrough for me it's not an answer]