I would encourage you to do a couple of things. First, talk to your surgeon and physical therapist about exercises to strengthen your shoulder for disc golf. I never had surgery on my shoulder, but my physical therapist got pretty excited about learning the muscles used in a disc golf throw.
Second, I encourage you to learn backhand. Done properly (i.e., no strong-arming), backhand is way easier on the shoulders compared with forehand.
General advice - wait until you think you are ready to come back, and then wait a little longer . . .