Formatting people’s names correctly in a given context, for a given purpose, is hard. International linguists recently helped update the #Unicode Common Locale Data Repository (#CLDR). It will help programmers display person names correctly in many settings.
Mike McKenna wrote about it in “A Story Teller’s Case Study: Unlocking the Power of CLDR Person Name Formatting – A Solution for Formatting Names in a Globalized World” https://www.unicode.org/media/CLDR_Person_Name_White_Paper_June%202023.pdf