See here for a discussion of a similar question.
Remember: you set the rules! These are not custom workouts designed by a coach who knows how you’re feeling today and helps you adjust the rides to get outdoors when you need the refreshment of open space. You can substitute a recovery/gentle endurance outdoor ride for its equivalent indoors. Or if you personally can handle the volume, you can add it to your program. Listen to your body. If you are feeling too fatigued, skip a workout or drop intensity. See here for an article about listening to your body.
Have fun!