HelixNotes is completely free, open source, with no bloat. Your notes should be yours.
So we made sure they are. https://helixnotes.com/
I want to split topics into different folders, with sub-topics in sub-folders.
this is an annoyance with Joplin, one mega note with lots of sub notes and sub notes off the sub notes.
I work with it but I'd rather split them off into completely separate notes as I used to do in the days of yore with Onenote