Proposed feature in settings: User can specify backlight always on during specified activities. Bonus feature:User can set specific backlight % separately for each activity.
Rationale: The watchface is readily visible in daylight. In darkness it is almost invisible, which isn't much of a problem because a quick tap of the screen illuminates the dial.
But... for us clueless souls who do pre-dawn workouts, a dark/invisible screen that requires user intervention to be readable, that is a semi-serious inconvenience. In darkness, even 10% backlight would make the screen readily visible
Benefit: For users: Readily visible screen during activities performed at night. No need for user intervention that breaks exercise rythym or requires one-handed bike steering. For Garmin: vivoactive 3 becomes the sports watch of choice for fanatics who insist on exercising in the dark.