Obsidian, but it'd be Apple Notes (for personal, anyway) if I could more easily export everything to Markdown natively, without using fly-by-night apps and scripts.

I also can't stand the way Apple Notes capitalizes words in a code block, WTF?

Yeah, auto type can be frustrating, particularly when it is forced.

I do like how to-do lists are easy to read, in Apple Notes, they shift positions to last when done.