Update 2021-01-26: This has been solved with a plug-in (see below):
There are a few missing keyboard shortcuts (on Apple devices, at least) for navigating and selecting text without having to use the mouse/trackpad. Specifically, what is missing are two of the ⌥⇧–Arrow commands.
Option–Shift–Up Arrow: Extend text selection to the beginning of the current paragraph, then to the beginning of the following paragraph if pressed again.
Option–Shift–Down Arrow: Extend text selection to the end of the current paragraph, then to the end of the following paragraph if pressed again. Option–Shift–Left Arrow: Extend text selection to the beginning of the current word, then to the beginning of the following word if pressed again.
Option–Shift–Right Arrow: Extend text selection to the end of the current word, then to the end of the following word if pressed again.
These are taken from Apple’s list of Mac keyboard shortcuts.
⇒ there are really only two text-selection functions that are missing. So maybe this is not a feature request, but a minor bug?**
ALT + left/right arrow jumps to the beginning / end of the paragraph, hold SHIFT if you want to select. CTRL + left/right arrow jumps to the beginning / end of a word (and keep jumping word by word), hold SHIFT to select.
** For some reason, Obsidian uses ~f and ~b instead of ~^f and ~^b which is a bit of a pain.
You can also make your own in ~/Library/KeyBindings/DefaultKeyBinding.dict — here’s a reference
Obsidian (and other Electron apps) don’t respect any of the cursor movement keybinding commands so far as I can tell. They do respect things like insert_text:, "blah" and cut:, copy:, paste: though.
I appreciate coming across this, but it’s just opposite to how other iOS apps work. That is, alt → moves the insertion point forward by a word, alt ← sends it back a word. Using Control → and Control ← just for Obsidian is rough! Is there a way to reverse this behavior?