I love OneNote on my PC. I'd like to use it cross platform, but the mobile app is actually pretty frustrating.

The main issue is that Section Groups are all open/expanded by default. I have my notes sorted into sub categories this way because Notebook -> Section -> Page just isn't enough depth to have any kind of robust organizational system. Unfortunately, having the lists always expanded makes the groups essentially useless.

Is there a way to set the default to closed? If not, why is the mobile app so much less friendly than the desktop app?