Exporting workouts to garmin : anything new?

I went through so many topics from 2016/2017, some say you can import .tcx into the garmin once you plugged it. I tried and I don’t see the workout in the head unit.

Do we absolutely have to use the Xert Player to do a workout ? I mean it’s fine when we do it on the trainer, but if we want to do a workout outside and use our normal screens before and after the workout, how can we do that ?