Good luck Richard! I had mine done in March of 2020, the second to last person in and out of the OR at St Vincent's in Worcester before they closed surgery down due to COVID...my roomate was the last operation! Didn't know that was going to happen at the time, just got "lucky."
They are right, after you are back in your room, a sweet young thing will arrive take you for a walk, and though you will feel "stiff," it will be fine. Eventually you will walk up and down the hallways, and then even stairs. Cannot ever say I ever had "pain," just sore to really sore. And so my suggestion will be, when they send you home with a bunch of drugs, take what they tell you to! Don't be a hero saying "I don't need that stuff," because you will, and if you don't do as prescribed for during the first week, you'll have to the second. Plus you will be miserable.
I was very fortunate to have been able to schedule my life to get the replacement done on my terms, before things got too bad. My sister had hers done a few weeks before me, after she proverbally had gone off the cliff and could barely walk. Wishing you all the best. They say four to six weeks and you are like new, well don't think "new," but you'll not need a walker or maybe even a cane, depends on how they do the replacement. Don't watch the operation on YouTube, it may scare you away! (I didn't but think all my friends did!).