Official word from Garmin on activities

does this change things regarding uploading activities to Garmin Connect?

ON VELO NEWS:

Garmin allows other apps to update Training Status

Garmin Connect now accepts direct data uploads from third-party apps, including Zwift, and will update your Training Status accordingly.

Garmin’s Training Status is an overview of your training habits over time, and is a metric that attempts to quantify how your training is progressing.

The data pulled into your account will now automatically count towards your Training Status, so you’ll have a more insightful picture of your fitness, as well as get suggestions for recovery time, and also types of workouts to do in successive training sessions to continue fitness gains.

Metrics included in the calculations are VO2 max, heat- and altitude acclimatization, and more. A heart rate monitor and power meter are required for advanced data calculations and analysis. Garmin indicates that activity load data — from a Zwift ride, for instance — will be visible in your Training Status reports, but it will not be visible in your activity details.

This feature is available for the Edge 530, Edge 830, and Edge 1030 bike computers as well as a range of wearable devices including late-model Fenix and ForeRunner series.