Good luck to you. I am 6 months out on mine, done at UCSF in San Fransisco (the closest surgeon to me who does this procedure). My CFR tendon was cut at the wrist to prevent the Stablyx implant from rubbing and potentially rupturing the tendon. I got my finger-tip pinch strength back within a few weeks of surgery, but pinching thumb to the 2nd index finger joint took about 4 months (a different stress on the fixed joint). I rock climb at a gym for fun and exercise, and was able to resume that (although a bit limited) at 2 months. I felt some joint and wrist pain when climbing, but was still able to get in a good workout. My hand continues to improve, but when the storms roll through this area, both hands (fixed and not fixed) ache about the same, in the same places.
I hope all goes well for you, and you can resume your golfing.
gregv