I avoid talking to LLMs in my native tongue (French), they always talk to me with a very informal style and lots of emojis. I guess in English it would be equivalent to frat-bro talk.

Le "tu" m'irrite vraiment venant d'un ordinateur.

Have you tried asking them to be more formal in talking with you?

Prompt engineering and massaging should be unnecessary by now for such trivial asks.

"I guess in English it would be equivalent to frat-bro talk."

But it does that!

Gemini doesn't talk like that to me ever.

You're absolutely right!