A critical piece of this is to ensure it is just fixing the grammar and not rewriting it in its own AI voice is key. This is why I think tools like grammarly or similar still have a useful edge over just directly using an LLM as the UX let's you pick and choose which suggestions to adopt. And they also provide context on why they are making a given suggestion. It still often kills your "personal voice", so you need to be judicious with its use.