For me that actually is one thing I really love about OneNote and hate about everything that tries forcing my notes from something paper-like into something tex

For me that actually is one thing I really love about OneNote and hate about everything that tries forcing my notes from something paper-like into something text-file-like because that's just not how I take notes. I tend to scribble into corners or wherever there's space. It doesn't linearize well, but it doesn't have to (at least for me).