Hello Modigi. I don't have a Fenix 5S Plus, but I do have a Forerunner 645 Music. With it, the headphones work perfectly and without any interference or jerkiness (even on the left wrist). I assume that the same technology is installed in the Fenix.
The officially compatible headphones are listed here (including the Bose):
https://support.garmin.com/en-US
In the 645 Music forum there is a big discussion about headphone compatibility including a list:
https://forums.garmin.com/forum...
Greetings, oliver_b