I had CMC surgery on my dominant thumb. My surgeon had me do two months (OT) occupational therapy to build strength prior to surgery. He said most of his patients did not require any therapy post op. It is a longer recovery time than I anticipated. I ended up in therapy post op because my nerves were in hyper state and I required desensitization and strength as I had already had a reverse total shoulder and required more OT than the average person. So for me it was a year recovery process. Having said that my thumb works just like a normal thumb would.
Everyone has a different experience but I am in no pain and thumb works great! Best of luck