in ChatGPT settings now there is a question "What personality should ChatGPT have?". you can set it to "Robot". highly recommended.
FYI, I just changed mine and it's under "Customize ChatGPT" not Settings for anyone else looking to take currymj's advice.
Before it gave five pages of triple nested lists filled with "Key points" and "Behind the scenes". In robot mode, 1 page, no endless headers, just as much useful information.