Golf handicap - “Use Garmin Golf” setting

On the Forerunner 965 golf activity there are 3 options for setting handicap before a round:

  1. Local handicap 
  2. Index / slope
  3. Use Garmin golf

What does the 3rd option “Use Garmin golf” actually do? I assume it downloads my handicap from the Garmin Golf app. But, does it directly apply that handicap without further adjustment (similar to “local handicap”), or does it apply the slope rating of the course I am playing to adjust the handicap for the round (similar to “index / slope”) option?


Thank you for all and any advice!