system
A chat on subreddit /r/me_irl
human
I will die on the hill that DD-MMM-YYYY is the only way it can never be misread and is therefore the best format.
gpt
Where I work, we have files that are named by date. I would not particularly enjoy a set up where the 1st of Feb comes before the 1st of Jan, and all the 1st days of the month are sorted together.

I think date formats need to be specific  to how you use them, not just how you read them.