If you’re like me who’s new to Obsidian and can’t write anywhere else without Vim keybindinds, my current solution is to add a shortcut to Open in Default App (which the extension .md is set to Vim).
After that, when you want to write, trigger the hotkey and write in the real Vim. I know it’s not pretty but it’s the only want I can write without typing jk over and over and over.