I had a guy that worked with me in OK that was more dedicated than that. He would line up food like all the fries have to be lined up and then he will eat from one end all the way to the other, never taking a fry out of order, whatever order is in his mind. He would look at every bite of his burger and if it didn't look right, he'd take a nibble here and there until it looked right before proceeding.
Watching him eat ribs or corn on the cob made me think of "One Flew Over the Cuckoo's Nest". He would strip one side of the rib clean before taking a bite form the other side and you could make a pipe out of the cob when he was threw with it.
His wife told me she wouldn't serve him mixed vegetables at home because the kids would get nervous watching him separate them into little piles of all carrot or peas or corn before eating them.
One of my best friends takes that food can't be touching other food to the extreme and has to have a separate plate for everything......and utensils. When we'd go out, we had to make sure we got a table large enough for his spread. I lmao when I saw how his wife satisfied that quirk at home, he had his own dinnerware like you'd have for your kids with all these different sized bowls and plates.