You should certainly be able to play golf and participate in junking activities after you've healed.
I feel much better climbing a ladder now that I have my new knee than before. Working off a ladder for an extended time maybe a separate issue, and I'm confident I'll do better after the second knee is done and heals. One of my goals into be able to climb scaffolding, and my OS didn't bat an eye at that.
I couldn't squat before, but I believe is will be more possible after my second knee is done and recovered based upon how I feel now. I can kneel, but it feels odd. Nice cushioning helps alleviate that feeling.
Running, while possible is not recommended due to extra wear and tear on the new joint. You've already indicated you're willing to substitute other activities. Many people find cycling to be rewarding.
Good luck.
Jean
LTKR (Stryker Triathlon): 21 April 2015
Right Knee Arthroscopy: 25 July 2006
Left Knee Arthroscopy: 10 February 2005