Still trying to understand why even the unformatted text option in Word often doesn't produce unformatted text — I've seen too many times where column & margin

Still trying to understand why even the unformatted text option in Word often doesn't produce unformatted text — I've seen too many times where column & margin information carries along even when font styling does not, & there's no good way to get rid of it without starting an entirely new Word document.