It shows the cabanas on Deck 14 by the pool. Magic Carpet is primarily a drink venue, but is used occasionally for special dining (Chef's Table, etc.).
Do y'all realize this cruise was back in March? BTW, CC HH is no longer in a particular location (on any ship), and Apple devices are typically not current generation.
I read OP as querying if Celebrity was still limiting capacity.
@Ferry_Watcher and @39august make that pretty clear that's not the case (2,600 on 26 August Solstice sailing, BTW).
Who knows if your flight will be on time? How far is the hotel from the airport? Too many variables. I'd just self-test with Emed or on Saturday with OnPoint.
Unless you give a specific example to research, it's impossible to determine. That said, the current promotion is 75% off for the 2nd & 4th guests---so the 3rd would be "full" price.