Before I discovered Obsidian, I was using iA Writer to manage my markdown notes. I became an expert in the keyboard shortcuts. I use Cmd-1 through 6 to create headings in my markdown files all day long. iA Writer has keyboard shortcuts for every possible markdown item you want to add (list, ordered list, code, etc). As far as I can tell Obsidian only has a handful of keyboard shortcuts, bold, italic, link, but nothing for headings, lists, etc. If you forget a keyboard shortcut, you can look in the menu (on a Mac) to find it or hold the Cmd key down on the iPad. Obsidian does not support either of these methods. In fact the menu has next to nothing in it.
Even worse than this lack of keyboard support, I find the editor is bad at handling a well structured Markdown file. It will get confused at the different heading levels and a Heading 1 will be smaller than a Heading 3 in the same file.
Although I love the way you can link and manage files in Obsidian, I find the bare-bones, barely usable Markdown editor and viewer as baffling in an app whose primary purpose is to manage your Markdown files. Am I the only one that feels this way?