for the the refreshable action gets never called in WatchOS, although it is marked as supported on this platform in the documentation (watchOS 8.0+).
As Apple itself offers this feature in mail app, I supposed it is considered as "good" UX so we should be able to use it.
fbapple
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution