Google updates on mask wearing. Several countries including Italy and Spain have said they are not going to drop mask wearing in several areas even though EU guidelines say differently. That's probably why Ortega is hedging his bets about mask wearing and testing.
I like Celebrity but I don't think they were enforcing rules as much as O was. I was on Riviera in May and if you forgot to put your mask on in the Terrace, especially, you were reminded to do so.