For some time, I used org-mode for almost all type of note taking. I love the structure being functional without HTML rendering. However, it's pretty much locked to emacs and so the portability is very poor. I need most of my notes to be at least readable on my mobile devices.
When I discovered Obsidian, I decided to fully switch to Markdown. It's very nice that it supports vi bindings.
I can't consider myself to be an emacs superuser but I've built muscle memory around its key bindings so on JetBrains IDEs, I use my custom emacs based key maps. I used to be an Eclipse user many years ago, but when IntelliJ community came out, and it started supporting emacs key maps, I made the jump. I'm now using ultimate licensed by the shop I work at.
When I discovered Obsidian, I decided to fully switch to Markdown. It's very nice that it supports vi bindings.