ChatGPT can be a great tool to use to help you with your grammer and phrasing, so don't count that out as a helpful too. It's a great proofreader and copy editor like that. The problem with AI tools is that people rely on it to just spit out content and posting it. You can certainly tell who the culprits are, that's for sure. I have seen some articles by ESL folks and the wording is way to elegant for it to be their content, lol.
But, most tools like that are really AI at their core, like Grammerly. I get why the watchers don't like it and attack people who use it, but if used correctly, AI is an extremely helpful tool.