You can use the RC app to check in (and get a check in time) and then close the app and do the rest later, at your leisure.
The three health questions can now be answered at check in time - no waiting until just before the cruise.
No more uploading of vaccination cards, and they don't ask to see them at check in, either.
No more testing, and no more showing the test results (on the *honor system*) at check in. (this offer is void if your itinerary includes any port that requires testing)
When I got my bivalent booster, she wrote out a new card and gave that to me.