I am also facing this issue, although it only happens when opening the context menu when the cursor is on a word that is marked by the spellchecker.
Happens in the sandbox vault as well.
Installed through pacman.
SYSTEM INFO:
Obsidian version: v1.7.7
Installer version: v1.7.7
Operating system: #1 SMP PREEMPT_DYNAMIC Mon, 20 Jan 2025 21:26:55 +0000 6.13.0-2-cachyos
Login status: logged in
Language: en
Catalyst license: none
Insider build toggle: off
Live preview: on
Base theme: adapt to system
Community theme: none
Snippets enabled: 0
Restricted mode: on
RECOMMENDATIONS:
none