I mean I'm probably gonna get down voted for this but........ The chips thing I can understand to a certain degree. My ex loves crunchy foods. She would bite into them with her mouth open so that it made the loudest noise possible because it was satisfying for her. In a quiet setting that noise can be extremely distracting.

The perfume thing... Some scents give me an outright headache if I'm exposed to them for too long. I haven't experienced it with perfume yet, but I have with some air freshener scents. So in that regard I get it.

Would I go to my boss about it? Nah. I'd explain my position to the individual and ask that they chew with their mouth closed or maybe use one less squirt of perfume, but I wouldn't report them over it. That's just sad.