It turns out that whenever I interact with people who aren’t familiar with the Polish language, they have a hard time repeating my name. That’s why I started using its English version on social media.
If you were ever curious, this is how I pronounce my actual name Grzegorz:
There is also a notational standard IPA for the phonemic and phonetic representation of all spoken languages, which encodes pronunciation as:
/ˈɡʐɛ.ɡɔʂ/
https://en.wiktionary.org/wiki/Grzegorz