Discussions on Strava's support forum:
Garmin Sync filter to only upload certain activity types to Strava
and:
Same here... I'm using my garmin watch to track all my activities but only want to share running and biking activities to my strava followers. Not my walks, cardio, gym, climbing, etc... Current process is to put everything private in strava and for each activity, if it is running or biking, I change privacy and if not, I delete it. This is long and tedious. I wish I could select, for each activity type, if I want to push it to Strava or not.
Hi, there's a similar thread on Strava: https://support.strava.com/hc/en-us/community/posts/203856830-Sync-only-some-activity-types-from-Garmin-to-Strava
With no response or action from Strava.
They did respond in August of 2018 with some hope, but it was a very general response with no confirmed dates. So maybe in their mind "case closed." Curious if anyone opened a support case with Strava about this. If it's like Garmin, they likely do not link their ticketing system to forum posts so there is really no official project/task/request/incident, etc.