Even the system spell checker in Apple devices points out grammar mistakes. Vale works on the command-line, Grammarly was already a thing before publicly available LLMs. There are also editors like iA Writer (iA, not AI) which highlight clichés, adverbs, nouns, and more.
The level of AI use you're describing isn't what people are complaining about (and probably don't even notice). Fixing grammar and occasional word order change isn't going to make your entire article sound like insincere bullshit.