I'm back flying again (last flights were end of Oct. 2020). LEX/ATL/MCO are not up to full speed. Many things are still shut down (food/stores) and although the airports are busier than most of 2020, they are not as busy as pre-covid. You can get on the air train in Atlanta and not be crowded (early covid I was often the only person on the air train). Ditto for the tram in Orlando. Saturday, security in Orlando only took 2 minutes. If you need food in Atlanta, lines will be long because of so many places closed.

Tha is a great, we are flying out to Lukla for our Everest base camp trek8 days, the thing seems normal in Nepal now