"Instead, OpenAI's policy says that all chats-except temporary chats-must be manually deleted or else the AI firm saves them forever." What are the default set

"Instead, OpenAI's policy says that all chats-except temporary chats-must be manually deleted or else the AI firm saves them forever." What are the default settings. Are they "make temporary" or "save forever" A fact known well by Silicon Valley's so-called "tech" companies like OpenAI is that few users will change default settings