I've no problem with using LibreOffice for most of my document needs, but i haven't found a good substitute for microsoft's OneNote yet. I mainly use it to plan my RPG games and it helps a lot. What alternatives are there for organizing notes on linux, with similar features to those that OneNote provides?
Siyuan is probably the most advanced note taking app out there right now. Affine.pro is also a good one Appflowy is also good. All are FOSS.