Yes, prior to TR I put Strava workouts into my Garmin. And then used that experience to do same with a handful of TR workouts on my Edge 520. Nice to have the lap page showing time remaining, but complying with my narrow 14W sweet spot zone outside is a challenge. For that reason, I applaud TR simplifying indoor workouts for use outside.
Long aerobic rides outside I don’t bother programming into head unit, for me zone 2 is roughly 125-175W so I’ve been working on learning how it feels to target 150W.