The new AI-powered writing tools on macOS and Windows are very convenient, but of course their LLMs won't accept controversial text. You can only "proofread" it (like grammarly, RIP to that company), but you can't "rewrite" it (changing the words) since that's probably going to get the company sued.
So I found this free and open source alternative to the same exact tools: https://github.com/theJayTea/WritingTools
I just tested it, works great on mac. It's as convenient as the OS tools, but running ollama locally I can use uncensored LLMs with it. If you don't care about controversial content you can also connect the app to the most powerful LLMs with your API key.
I tested it with this model: https://ollama.com/library/llama2-uncensored:7b
It should work on Linux as well.