Can I link my watch to MyFitnessPal?
google says it is somewhat possible with a detour thru Strava.
I don’t have any insights but everything you load to SA can be synced to Strava. You can try and check what myfitnesspal does with the data it receives from Strava, in case it allows 2 way sync
I am currently synching via Strava, but it doesn’t seem to be picking up walking activities.
I was syncing via training peaks (free account) up until last week and it seemed to pick up all activities.