There is a lot of margin between the (user's) prompt and the bot's response. Whereas this space can be better utilised by having wider chat "containers", and thus allowing for the prompt and the response to take up fewer lines. One could think of drastically/completely remove this margin and have another way to show a distinction between the user and the chat (e.g., a slightly different background)

The current layout is, for example, when the user/bot provides a long piece of code or a long text, problematic since it creates a lengthy chat containers on the Y axis. Other LLM interfaces don't have any (noticeable) horizontal margins between the user and the bot: ChatGPT, Bard, Cohere. Although i.e., ChatGPT doesn't have a drastically wider Chat "container", they have a very small header that disappears when scrolling, allowing them to show more content this way.