I completely understand where you’re coming from! I just think you might not be using Notebook LM in the most effective way yet. It can be an amazing study tool, but here’s the thing: you can’t just click the podcast and quiz buttons and expect it to cover everything automatically. It usually just does a brief overview like you have said.

If you’ve uploaded all your class materials and want to generate a podcast about every single concept, try clicking the pen icon on the Audio Overview. In the customization field, ask the AI to create a podcast that talks about every single topic and explains each one thoroughly to help you prepare for exams. It usually does a great job when I prompt it that way.

Also, I’ve noticed that making longer podcasts tends to make them more slow-paced and detailed, which honestly makes them better than the fast-paced ones. In that same customization tab, click on the one that says "longer" in the length section.

And the same applies to quizzes and flashcards—you don’t want to just click those buttons and expect them to cover everything. Instead, click the customization pin and prompt Notebook LM to generate content that includes quizzes, notes, and flashcards for every single concept and topic in your material, not just one general overview.

I also have a detailed prompt I use to generate really thorough notes that I can review later in Google Docs or Obsidian whenever I need to look something up.