If we are talking about ChatGPT, then I don't use it and I don't know how to use it. I use Grammarly free version to correct the silly mistakes in my writing. I think it's a kind of AI, isn't it? I use it to shorten a paragraph sometimes, or to improve it!
When we are dependent of our devices for almost everything, aren't those kind of AI?
So, I think we are using AI, knowingly or unknowingly!