I've belt squats since this post. It helps a lot bc I can move around a bit more to find a comfortable range of motion. Knees still hurt but I am able to negate some for sure. I have good quad days and bad. I am adjusting my exercises more and more.
-leg extension
-leg press
-belt squat
-lunge's
If I'm having a good day, I'll squat but keep the weight light and place at end of workout