Is there a possibility for TrainerRoad to add linear endurance workouts in the future? I frequently train for 2 hours during the week and longer at weekends at endurance and noticed most endurance workouts have a lot of changes in power. The option to choose an alternate workout at straight 65% of FTP for example for would welcomed by myself at least.
I monitor my HR regularly during endurance rides along with RPE and this would make it easier to adjust.
Millers and Klothos are the closest workouts I can find that meet the criteria of being “linear” and around 65% of FTP, though they’re both only 75 minutes long.
There are still plenty of existing options that have many, but small fluctuations in power, such as Rymsza, and if you’re riding outside, those changes in power are negligible..
I agree with the others that, for the time being, using the Workout Creator could be your best option if you want something highly specific.