I bring this up often because its so amusing to me.
Last year I did a lot of interviews with developers of popular Steam Deck and Linux programs. All went really well, and were quite fun to do.
One ‘dev’ (I use that term so loosely because I found out GPT is heavily used for their work) freaked out though when they saw my document I sent initially was an .odt file.
Knowing I am a pen-tester, they freaked out and told the public at large I was trying to hack them with a weird file type.
.odt
It still makes me laugh. Anyway, I swear by LibreOffice, I use it daily and love it so much!
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.