Nah, I use OneNote for formula and graphs, it is more for reference. But for going hundreds of EOC (End of chapters) exercises from hundreds of textbooks, journal is better. I know where the files, I can put the files in different folders, put on USB, sync with google drive, and I know I can open it on any Windows computer. OneNote is completely different beast, there is no files, I don't even know where OneNote stores it files. My concern is not which software to use, it is why MS put straight/rectangle/circle function in Journal so indirectly, instead of give to convert something into a line, why not just give us the ability to draw a line.