Here's an article from SEO Journal referencing Google's stance on AI content.
https://www.searchenginejournal.com/google-says-ai-generated-content-is-against-guidelines/444916/#close
It's not clear whether Google actually has the tools in place to detect AI content, but there are third party tools already on the market that can, like Originality AI, which also a Chrome extension.
I read this article, and it seems pretty clear to me that google does not have the capability to detect AI writing just yet. They are not "for" AI content, they just have no way of detecting it automatically.
They also know that AI has been writing articles since at least 2014.
And they seem to be "ok" with "smart" use of AI content.