Thx anyway, I saw your concern about em-dashes on Chat GPT. However, you can stop it by going to setting.. You can find a comprehensive tutorial here:
https://ruben.substack.com/p/emdash
You can always change the writing style of your GenAI, I worked with LLM consultant before and it's work the same for other tools like Perplexity, Claude, Mistral, DeepSeek, and Gemini.
So, if someone thought em-dashes are always AI, they are crap. Even semicolon can be generated by LLM too 🤣
For example: "Systematically replace em-dashes (“—”) with a dot (”.”) to start a new sentence, or a comma (”,”) to continue the sentence. Use semicolon (";") for a long sentence to replace em-dashes effectively".
You just need to write the prompt properly to always choose your preferences including word choices too, the most effective method is through the settings and it's completely free. What I see here em-dashes is a default setting, but not everyone knows this hack.