Just got back from our trip on Friday. We flew nonstop from Buffalo to MCO and back on Southwest. We flew out on Saturday 10/25 on the 9am flight, and landed about 20 minutes early at 11:20am. They didn't say how many were on our flight, but all middle seats and many seats in the back were empty. They served us water and graham crackers. On the way back, we flew home Friday on the 2pm flight and there were only 66 people out of 140 on our flight. They served us chex mix, brownie brittle, and water. Tons of empty seats. Everything on both flights seemed cleaned but we wiped down everything with our own wipes. Very quick and easy to get our luggage both ways.
Boarding process was a breeze - groups of 10 board at a time. In Buffalo, we did line up in groups of 10, but in Orlando, they just called groups of 10 to board immediately so there was no lining up in numerical order. We had EBCI (it was purchased pre-Covid), but would not have needed it. We got A35 and 36 on the way down, and A27 and 28 on the way back.
Overall, the entire process was smooth and efficient. If it weren't for NY's mandatory quarantine, we'd want to take advantage of this quiet flying time to travel more!