I got diagnosed with this a little over a year ago. Had always been able to cycle but knee really bothered me playing other sports. Started physical therapy last year and kept at it until summer when i got lazy. Started back up this fall and am having less knee pain now than in the last several years. After a hard ride I’d always have to ice my knee, but haven’t had to recently.
Sounds like you’re on the right track, I’m sure your PT will have some good advice for you. One thing you might ask him about is using KT tape on your knee to help align your patella. I did this for a while and it helped me, but haven’t had to resort to it in a long time.
The core exercises in my routing are
Single leg deadlifts
Split Squats
Clamshells with resistance band
Side lying hip abduction
Single leg glute bridge
Resistance band side walks.
Various hip mobility and hamstring stretching.