Today I did my first advanced spreadsheet on LibreOffice after switching to Linux, and it handled itself pretty well. I had to search for some features on the web at first, but after I got it down, I felt comfortable using it. Also, LibreOffice’s default menu layout is not pretty, but I can find all of the functions with just a click, unlike MS Office’s ribbon menu where I had to click around to find what I was looking for. Sorry for bad English.
if a specific format isn’t requested or required, and the formatted text document is not expected to be edited by the recipient–only read, possibly by computer, or printed, i would default to using a pdf.
Most of these were not on-the-spot interviews. They were very informal questions and answers.
So Writer felt appropriate to me - the questions were there, they can copy to paste elsewhere, or enter their own answers in the document.