Not really.
What will actually happen is Google may link me the actual research paper, along with thousands of other associated pages which may or may not have all kinds of fake, false information. For example, if I search for "study essential oils treat cancer" I get an estimated 190 millon matching documents. A huge percentage of these have false and misleading information about using oils to treat cancer.
> "language model will generate you plausible explanation/answer that can be 100% false and it doesn't know or understand that it's false and you will have no way to know if it's false or true and no point of reference because ALL the results you will receive could be hallucinated"
With google it is third parties "hallucinating" the wrong answers (or worse: intentionally answering wrong in order to exploit and profit). The overall dynamic is not different. Google is providing these wrong answers, written by others.
The overall dynamic of providing information of questionable veracity is generally the same - because the question of who creates the associations and incorrect content is not particularly germane.