This is music to my ears, as I've started re-emphasizing gym workouts over my cycling workouts. It's already widely known that aging and inactivity tend to reduce muscle mass (muscle atrophy) and longer aerobic/endurace exercices such as cycling or running will improve your stamina and will lower your body fat, but will not increase your muscle mass by much. I've gone this rabbit hole of doing bicycle training and very long bike rides and lost a lot of weight/fat without even needing to change my diet much, but I have not gained muscle. This year I am improving on that by mixing in some gym session early on in the season (and hopefully keeping some gym work later in the season too)