I've been experimenting with "paged chats" UX and find myself using it fairly fluidly https://xenodium.com/llm-iterate-and-insert
Been experimenting with the same approach but for "paged shells" (sorry for the term override) and this seems to be a best of both worlds kinda thing for shells. https://xenodium.com/an-experimental-e-shell-pager That is, the shell is editable when you need it to be (during submission), and automatically read-only after submission. This has the benefit of providing single-character shortcuts to navigate content. n/p (next/previous) or tab/backtab.
The navigation is particularly handy in LLM chats, so you can quickly jump to code snippets and either copy or direct output elsewhere.