Seems like it. The about page also screams ChatGPT. I had a quick look and a lot of posts have the same GPT-like style.

Yup, this feels like reading a whole lot of nothing.

What? I read it all, didn't pay attention to it as I was more interested in the subject but now that you raise it, I can't unsee it.

I even feel that ChatGPT UI looking at the blog post.