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.
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.