I was also on the Apex TA and quarantined on the British Isles cruise. I do know that b2b testing was done at the end of the British Isles cruise.....and, IMHO, should have been done at the end of the TA cruise. Whether they tested between the British Isles and Fjords cruises or the next ones I don't know. I'm sure there were a lot who got a surprise when they tested to fly home. At least that's not needed now.