I'll bet it feels great to be gardening again---it sure was for me! Do be careful though. Under normal circumstances you use so many different muscles when you garden, and it's easy to overdo. After this surgery, it is even easier to think you are feeling great and then end up pulling or straining something.
My biggest issue when I resumed gardening was my balance. I would often step in a tiny indentation in my grass as I walked to my gardens and feel like I had stepped in a crater. Or I'd step into a bed and brush against something and feel like my balance was off. Gardening is always good therapy, and especially so now with all the stress of Covid 19. Take care.