11/27/2022... Just off The Discovery. I asked the same questions (and the answers above reflect the situation).
You can get the same table every night. On the first night you go to the dining room, and as you leave, ask the front desk to give you the same table every night. That was no problem, and we got the same one every night.
We would have preferred the 'old way' of the same wait staff AND visitors. We were told that would not be available unless we knew the people ahead of time and made a group reservation. So that is unlikely to happen before hand, and not very likely to happen on the first night, I suspect.
It is unfortunate, as I have made several friends that I still email because of dining together. But, as others have indicated, those days appear to be 'history... in the archives'.
More unfortunate, but perhaps a result of the very crowded ship, was that the service of the staff, even when the same every day, and at the same time of day, the service was not what i had been. For instance, in the past, certainly after the second day, IF i ordered the same drink (sprite) every day, then by the third day, the Sprite was waiting for me. This time, it was not, and it was as if the staff didnt remember it the entire trip. Also, again, perhaps because the ship was at or above capacity (with lots of youngins out for the Thanksgiving week), the staff seemed stretched and service was below what it was when I last traveled (pre-covid).