Got this feedback from a user today.
The reasoning is that this makes it easy to tell which tasks are completed while on Google Calendar.
She originally suggested adding a “✓” symbol before the title of the Google Calendar event but I thought [X] might be better. It’s semi-standard for Markdown checklists and separates the text and the “checkbox” better.
Would love to hear your thought on whether this would useful and what indicator should be added instead of [X] or “✓”.