I am a prolific note-taker, and I use vim. Many of these features and more are supported in vim with the vim-markdown plugin, which has support for markdown syntax highlighting and syntax highlighting in code blocks, and a hierarchical table of contents using the location list, which is my favorite feature. I have scripts and functions that implement some other features. The one important thing that vim necessarily lacks that is very useful for note-taking is the ability to render images and mathematical equations, which is why I still sometimes use Word.

This is a neat piece of software, but it would seem to me that the tools available on the command line - Unix or PowerShell - cover just about all the use cases, and importantly, are customizable, lightweight, and interoperable. For instance, I have scripts that use fzf and/or ripgrep to quickly search my notes directories and open notes for editing.

This is just me - it's definitely possible that I'm missing out on a better way of doing things, but I can't easily see the value, for a developer at least. Maybe folks just aren't that familiar with what can be done with common tools that already exist? Maybe it's because the CLI can be a pain to learn? I guess that's what a GUI note-taking app is for...

BTW, I'm not trying to be negative, just sharing my possibly idiosyncratic perspective.