I know it is way off topic, and i am no physician, but talk to your doctor about platelet rich plasma therapy for your knees. It helps to repair the damage cartilage whereas the cortisol weakens the cartilage after a few shots.
Probably way to late for that. 33 years of millwright work, lifting 110 pound furnace brick on uneven surfaces did my knees in 25 years ago. Three operations didn’t help any. 68 years old and full of arthritis have left me bone on bone. It’s ugly.