Bugs bugs bugs and more bugs. I have issues with OneNote on my Pixel 6 Pro on a daily basis. It often says there's a conflict with a different version, even if i just created the page a couple minutes earlier - then says I need to use the desktop app to resolve the conflict. There are constantly formatting issues between mobile and desktop app, especially if i create a new page using the mobile app. This is the tip of the ice berg honestly. There's probably 10-20 bugs i could report.