Not much difference for ordinary daily things once the shoulder is healed from surgery. If you are into sports, throwing a ball or playing tennis will be a little weak because that fast snap is not there. Whether that might come back come with more time and work on strengthening the deltoid, I don't know. If you can combine using both arms for a movement, that makes it more natural. Any rotational rubbing/scrubbing movement is just more slowly done, but range is ok.
My doctor said only part of the entire set of rotator muscles are removed, but the front of my rTSR shoulder is definitely more sunken looking than the other one.

I am wondering if not keeping up with my stretch band exercises (forever) may have contributed to my current problem. I assumed I was getting enough workout through gardening, but the overall stresses would not have been directionally the same as the band use.