I suspect it might be translated
Also I am a native Swiss German speaker. For those who don't know: Swiss German is a dialect continuum, very very different from standard German to an extend, that most untrained German speakers don't understand us. There is no orthography (writing rules), no grammar rules etc. It's a mostly undocumented/unofficial writing system. Only spoken, and the varieties are vast. And guess what, I can write in completely random, informal Swiss German dialect and ChatGPT understands everything, but answers in standard German.
But as always only successful prompts are shared so I don't know how hit or miss it is