What is the chat happens in a software that didn't have chat history feature in the first place? I mean it's Google, surely they could cook up a separate intern

What is the chat happens in a software that didn't have chat history feature in the first place? I mean it's Google, surely they could cook up a separate internal chat tool just for this purpose. And if the chat history didn't exist in the first place, can the court order the company to switch to a chat software that has it? If not, how is it that different from toggling chat history on/off in a single software?