I have a feeling that Google knows and they are OK with it....for now.
So you end up with two diverging discovery layers: Google, increasingly polluted by cheap AI content, and LLMs, which seem to weight structured data, documentation quality, and mentions on high-trust platforms (Reddit, GitHub, Stack Overflow) way more than traditional SEO signals.
The real question is whether Google fixes this before users just default to asking ChatGPT instead of searching.