Our TATL on Celebrity Apex in October was a bit different. Testing before boarding in Barcelona, mid-cruise, and at debarkation. Some ports did not allow self-guided tours, but there were some inexpensive ship-sponsoerd walking tours, so it wasn't a big issue. Masks were required as long as we were in European control - once we left the Canary Islands, masks were optional. At that point, we really only wore them in the buffet. There was only one unvaccinated person on board (under 12). Started the cruise with 1200 people and ended with 1000 people. We unloaded 200 people in Tenerife because they were not U.S. nationals, and thus could not enter the U.S.
On debarkation in Fort Lauderdale, masks were required in the terminal. One woman loudly declared, "We're from Florida, and we don't need masks." She and the person whom I assume was her husband were detained by CBP. Some people just don't realize that state rules don't apply in federal facilities.