Hi! I noticed a potential usability issue with the default Ctrl + Q shortcut on macOS.
Many Mac users instinctively press ⌘ + Q instead of Ctrl + Q, since ⌘ is the primary modifier key used for most shortcuts on macOS. Unfortunately, ⌘ + Q is also the system-wide shortcut for quitting the application/browser.
As a result, users may accidentally quit their browser while trying to insert a callout.