Robotic TKR surgeries have been around since the early 2000's and is used by most surgeons today. There are many other variables, e.g., prosthetic model, procedure technique, etc. with no one better than the other, it's the surgeons preference. Some procedures do the incision from the side eliminating cutting the muscle and claiming a shorter recovery. As a layperson I make no recommendations and it could just be a lot of hype since it's not the overwhelming procedure used. Since my first of three TKR surgeries seven years ago, all were robotic, one was a revision. One knee is satisfactory, although not 100%, and the other including the revision is unsatisfactory.
I have read all I can on this subject leaving me with the opinion that the risk is greater than reported. This forum will attest to that!
There will come a day when the pain is unbearable and you will put the risk aside and have the surgery. Be positive and think of all the successful surgeries others have had. Best wishes.