Hi Taci - while I tend to use the API more than ChatGPT, I’d say that it has helped me to combine multiple “strategies” to reduce (not entirely eliminate though) these styles, such as giving the GPT a concrete persona and combining this with explicit instructions for the types of writing style and nature of language I would like to see it using, i.e. a positive formulation of the style. Occasionally, I would also add an instruction asking it to avoid the use of superlatives and exaggerations and provide in brackets a few of the common words or examples for reference.
It’s not silver bullet solution but it has somewhat helped in my case.
You can try custom instructions to make ChatGPT sound different.
There is no one-size-fits-all solution. For example, for one conversation, you might want it to talk like a friend, and In another, you might want it to respond like someone in a professional setting.