Most of the endurance workouts are supposed to be boring especially to someone living in the alps. 
Outdoors you may find some of the Xert data fields useful when free riding –
Connect IQ Store | Free Watch Faces and Apps | Garmin
Since you are in the mountains it will be difficult to use the Xert Workout Player on the Garmin to ride a workout outdoors.
Xert Data Fields on my Garmin - Support - Xert Community Forum (xertonline.com)
As @idefix mentions riding indoors you’ll find the Xert phone apps (iOS or Android EBC) are more robust than what’s possible to do within the confines of the Garmin Connect IQ environment.
Sessions can only be run on a phone app, but there are many more benefits such as workout selection, chart view, easy access to mode and % changes, rainbow gauge, etc.
Reference:
Using the Xert Workout Player for Garmin Connect IQ – Xert (baronbiosys.com)