It's fairly easy to determine where AI is being used. Misspellings, syntax wrong, etc. Some mistakes are ridiculously obvious. Saw one last night where Oahu was spelled Ahau in a story. No human proofreader would make a mistake like that.
If you don't mind plagiarizing dozens of other sources, go ahead and use AI. No point trying to pretend you're a writer....
What I write is math, and I don't pretend to be a writer, yet I'm writing a book, that's composed of salty quotes. I try to credit everyone, and an AI can do the same.