See https://kagifeedback.org/d/4304-assistants-code-output-is-often-hard-to-follow-due-to-the-limited-width-of-the-assistants-output/10 which was closed but is not fixed. The custom CSS suggested by somerabbit155 greatly improves the layout, although I personally made it even wider.
At least for code, I think the responses should use more of the available space so you can more easily read the code & don't have to scroll all the time.
