This is the #1 thing keeping me from moving all docs over from google

Adding "Toggles" would allow us to organize extensive notes efficiently, keeping the document clean and easy to navigate during a session.

Collapsible sections or headers would be super important, notion synthax for creating collapsible headers would also work well.

It would be a great improvement to keep documents easy to ready. Feature found in other productivity tools.
At least being able to collapse by Header sections could be useful already.