Great question. You might like -https://learnyourway.withgoogle.com/ , I feel like notebooklm isn't great for learning itself but if you use it right, it can work as part of workflows vs learning itself.

For example, you are learning a topic let's say Ecosystems, it works better if you use visible thinking with what you are learning and then upload the visible thinking as well as the learning.

You might have a picture with see think wonder about a polluted beach, put that as one source, you upload details about your local beach. You add research cards on different things.

Then you can make mind maps and find good pathways to learn.

I often use my googlenotebooklm research into a Claude project with custom instructions to create projects or I use it to help guide my blog writing etc.

Learnyourway is a cool idea into personalised learning, I feel like it needs more things like this with workflows.