My wife and I took this flight for a trip the first half of August, D1 both ways with GUCs. Flying out, we were just asked for covid cards and the Croatia app. We rented a nice car from Hertz - all the rental places are right outside arrivals and went to Dubrovnik, Hvar, Split, Sarajevo, Mostar, and Porto Montenegro. We loved each stop, especially Dubrovnik and Hvar. Traveling north from Dubrovnik, Waze routed us to a ferry as opposed to driving through the sliver of B&H as that crossing was very backed up, adding a couple of hours to that leg. Otherwise, the crossings from Croatia to B&H, B&H to Montenegro, and Montenegro to Croatia were each only 15-20 minutes. Entering B&H and back into Croatia we were asked for our covid cards. At DBV, the D1 check-in was very efficient but the main cabin line stretched forever. Also at DBV, there was no longe available as even the Priority Pass lounge is now closed (there is just a United lounge). Cabin crew was excellent both ways and the flight times are fantastic (for us) for adjusting to time zones.