The employees in the terminal seemed to still be in a learning curve. It went pretty slow so if you have the RCCL app use it. Also highlight the date, your name, type of test and result ("Negative") on your printed test so they can find it quickly.
The ship was only 33% full so no waiting for elevators, tables, bar service or lounge chairs. Most elevators were empty and no long wait. The Windjammer was very efficient. You held your plate out for the crew member to place food on it and they were very generous. When necessary they would ask how you wanted things placed on your plate.
Social distance with the tables and as soon as you got up some one was cleaning it and wiping the seats. We never had trouble finding a table.