At the age of 60 (and I’m pretty sure I’m not the oldest here) I find I need to focus on the recovery as much as, if not more so, than the workouts themselves. While ego might look at the high and medium volume plans, common sense dictates the low volume.
There’s a number of threads on here where low volume + is the general recommendation where the “plus” might be extra TR workouts or outdoor rides. I prefer outdoor riding, it’s what the workouts are aiming to help after all. I moved the workouts forward one day so I’ve the weekend free for the outdoor stuff.