How is that different from keywords? Embeddings aren't magic, they're just page content. Content is trivial to game since it's controlled by the website owner.

edit: The results are also from my quick QA not that great. Searching for "what is the best mouse to buy" leads to links to buy random mice versus review summaries or online discussions on mice. One of the recommended queries of "Here is a great fun concert in San Francisco" leads to some really bizarre results in non-English languages that have nothing to do with either SF or concerts.

edit2: Also, Google has been using LLMs part of their search since at least 2018 so definitely not just keyword matching there.