I’ve found ChatGPT is very handy for giving editorial feedback, but it’s a royal PITA trying to visually compare what I submitted and it’s revised version. So I instead created a program I run on the side, pasting in both my submission and the GPT result, then that provides a useful diff of what changed. This would be extremely handy to have as part of the UX, I think.
See the attached pic for a small example.