I have seen how great OneNote is, however, I feel like the "programatic style" of Notion is a lot better for me to take notes in.

The ability to embed code and have basic syntax highlighting is fantastic.

Another great feature of Notion is its 'databases' which are like Excel Sheets on steroids, where each cell can contain a specific 'card' (just a page to store information) which you can add custom properties to - making filtering, searching and sorting a breeze.

There is a small learning curve, but it is well worth it.