There are several improvements to be made to the iOS app, since as of right now it is very itchy and unintuitive to use.
Improve full screen support
In the following images it is clearly displayed some error when the left and right side menus open. The bottom part of the screen is never used (not even in preview or edit mode), while the top part of the menu overlaps with the notch and it is impossible to see.
This would make it easy to accidentally close your note when trying to open the menu. It’s also a feature I (and I think most people) would never use on a phone where there’s hardly room for multiple panes.