You gotta get a good ortho to scope it and try his best to clean it up. I completely thrashed my cartilage and meniscus in 2017 and had surgery that year. It didn't "get better" until I started doing the sled at the gym a few times a week. I did regular PT and it did nothing, but after about 2 months with the sled I felt like a new man. I was able to golf for the first time in 7 years a few weeks ago and it was amazing.
I have bone on bone and it sounds like shit, but since I did the sled and started really hammering legs at the gym (but I don't do squats over 135) it has gotten materially better. I don't want to harp on this, but in my humble opinion, the stuff in PT is marginally helpful but the sled is absolutely the only way to get the muscles around the impacted area to get stronger. You gotta push and pull it. Strain yourself with it once you get used to it and your whole body will get stronger.