Garmin Connect pushes an firmware-update to a connected device without any user-interaction.
This is categorized as BugReport, because Garmin Connect MUST ask the user for permission when/if to perform a critical firmware-update.
There is a risk of bricking the device, it destroys the current running activity, and there is risk of losing money (when the update starts inmid of an Garmin Pay transaction, what happend to me today)