I had this same problem after radiotherapy and HT for 2 years, the foreskin was tight and painful during sex, I explored the circumcision option too.
I also had recurring balanitis and was given steroid cream, which didn’t really help.
However due to the hormone imbalance in my body at the time I came to the conclusion that I had chronic thrush, so used canestan cream which worked in reducing the pain and making the foreskin more elastic and not painful
Once I stopped the bicalutamide this gradually became less of a problem to the point that it’s back to normal. If I ever suspect a hint of thrush I slap on some canestan for a few days and have no issues whatsoever now