I love onenote on the desktop, but the app's limited functions have led me to stop using it regularly because of sync issues and lack of features. Due to the recent update, if you add a certain page to your homescreen, and click on the top left arrow, it no longer takes you to the rest of the app but back to the homescreen. My phone already has a designated home button, this is unnecessary and cuts off even more functionality of an already terrible app.