Spell checking doesn't work with the Live Preview editor on Linux

Steps to reproduce

  1. Launch Obsidian 0.13.9 AppImage on Linux
  2. Ensure EditorUse legacy editor is off
  3. Type a misspelled word in a file

Expected result

Misspelled words underlined with red squiggles

Actual result

Environment

  • Operating system: KDE Neon 5.23 / Ubuntu 20
  • Debug info:
SYSTEM INFO:
	Obsidian version: v0.13.19
	Installer version: v0.13.19
	Login status: not logged in
	Insider build toggle: off
	Live preview: on
	Legacy editor: off
	Base theme: light
	Community theme: none
	Snippets enabled: 0
	Safe mode: on

RECOMMENDATIONS:
	none


Additional information

If I toggle Use legacy editor on, spell checking works as expected.

The release notes from v0.13.7 suggest that spell checking should be working with Live preview.

works for us. Did you add english after enabling spellcheck?

It seems to work for me in Ubuntu 18.04. What spell checker is installed by default in Ubuntu 20.04?