I was very happy to see Zwift rides could now be integrated into our Garmin activities properly but just in case I have kept recording sessions with my Fenix whilst turboing on Zwift. Both devices are connected properly to my Vector 3 power-meter pedals and to my H10 Polar Beat heart rate monitor, which I have been doing for nearly 2 years now.
For the two sessions in the screenshot, you can see there is a huge difference recorded for the Training Load.
Can anyone explain this or share similar experiences. It might be a more general problem with the way Zwift integration has been performed.