One possible frustration of using the keyboard with OneNote is the behavior of the arrow keys with a note selected. (It moves the cursor within the note container.)
To move text using the keyboard, first give the note container a right-click and choose Move from the context menu. Make sure the container is selected.
Now you can move using the keyboard. For more precise (one pixel at a time) movement, hold down the Ctrl key while using the arrows.
That’s it! Have fun using OneNote.