Garmin Connect currently does not properly support structured workouts for rowing, even though the FIT protocol defines rowing as a valid sport type.
When importing structured workouts from .fit files (e.g., from Intervals.icu), workouts with rowing as sport are accepted but downgraded to a generic workout (displayed with the general “fitness” icon).
As a result the workout is not associated with the activity type and it doesn't automatically appear when starting a rowing activity on the watch.
The same behavior occurs for multiple other sports outside the currently supported set (running, cycling, swimming, multisport, strength training, cardio, HIIT, yoga, pilates, mobility).
Supporting more sports would would significantly improve the user experience for athletes training outside the currently supported activity types.
Ideally, Garmin Connect should preserve the FIT sport field and associate structured workouts with the corresponding activity profile where available.
Thank you for considering this enhancement.