I record dog walks (14-19 miles/wk), and CoachCat recommends syncing everything including walks so that they can be accounted for in daily strain.

I don't use a Garmin device that can record anything beyond bike rides so they don't make it into Optimize. I could record them with Strava/iOS or Whoop. It would be nice to enable importing of activities from these platforms, when originating from them versus capturing syncs-of-syncs, in some way that can capture non-rides but not create duplicate ride-entries given those ARE recorded with Strava. This could be a prompt (Optimize detected a walk recorded with Whoop, should we import? Y/N) or a more granular control as suggested in another topic.

Edit: added screenshot from another app showing whoop does offer the capability to retrieve activities to other services

API info re: activities - https://developer.whoop.com/docs/developing/user-data/workout