Like, for example, what if someone doesn’t like cheese on their sandwich? Or loves pineapple on ther pizza? (its honestly good when combined with ham)
That plus your height and body shape and gender (as they can hear from your voice) is gonna narrow down the possibilities.
Depends on what you do with that kind of information. For example a CCTV camera can’t “see” your food preferences and use it to find out it’s you. So it’s useless with that. An online store can connect your preferences and make assumptions about you. For example Amazon does that. A restaurant could identify you if you have very specific custom orders and return there. I bet ordering a burger with extra cheese and without pickles won’t do it, though. But I’ve been a pizza delivery driver for a short while and some people had very specific preferences and those reocurring orders were very recognizable.
I think cameras can be trained to detect things, especially now with better hardware.
However, this probably won’t be done for 99% people. At least to me, it sounds extremely niche and to be used for spying and stuff against suspects.