Sorry, that is not correct. After syncronising to Strava, you are automatically prompted with a notification: "this looks to be an ebike ride...; do you wish to change?".Only if you remember to log onto Strava to tell it manually that it was an ebike ride. If you forget to log on and change it it’ll still record it as an regular bike ride.
now it should automatically upload it as an ebike ride and no need to do anything on the Strava side.