Any Focus Type 20 minutes or higher falls into the endurance quadrant which means a low intensity ride. This can be tough to maintain if you encounter many climbs especially any steep ones. Try to keep the in-betweens below LTP.
Reference:
Understaning the Training Advisor - General - Xert Community Forum (xertonline.com)
Training Advisor recommendation (focus and target) - General - Xert Community Forum (xertonline.com)
@ManofSteele’s demonstration video with a Garmin – Ride to Xert’s Focus Metric with Scott - YouTube