Currently, it is not possible to import the training plan from PowerCenter into the Garmin watch. However, it is still possible to get a power-based training plan on select Garmin watches with the TrainingPeaks Connect IQ app. This app is compatible with FR735XT, FR935, and Fenix 5 series watches:
In TrainingPeaks, you can build your own training plan (which you could copy from PowerCenter), and you can also purchase training plans from coaches. TrainingPeaks offers this for free but without the premium version, you can only add one manual workout to the calendar and save only a few workouts.
See DC Rainmakers review of the app:
Note that this is not an app developed or supported by Stryd.
If you need additional assistance, contact firstname.lastname@example.org.