Google's NotebookLM integration ruins the one thing that made it special

Google's integration of NotebookLM into the Gemini sidebar undermines what makes NotebookLM valuable: its strict source-grounded responses. When a notebook is attached to a standard Gemini chat, the model ignores the guardrails that prevent hallucination, actively contradicting notebook data and ad-libbing answers. The integration also strips out Studio panel outputs like Audio Overviews and Mind Maps, and causes hallucinations to spike when handling complex multi-source projects. While cross-querying multiple notebooks simultaneously is a genuine benefit, it's a niche use case. The author argues the integration primarily serves Google's ecosystem consolidation goals rather than user needs, and recommends using standalone NotebookLM for serious research work.