Originally Posted by MSPeconomist

How much do you want to worry about what happens if your connection (I am assuming that this is all on one ticket/PNR) is rescheduled, cancelled, or long delayed? Would you want to be able to easily spend a couple days exploring Moscow? This could be a big or small issue now depending on the airlines involved and the frequency of flights operated on your route by those carriers. If this is a RT, could there be an issue with needing to get a COVID-19 test in Moscow during your trip, especially before the return flight to the USA (new rules), including during IROPs? What happens to you if the test is positive and you're at SVO (or more generally in Russia) when you get the results?

There is/was an "airside" transit hotel "at" (meaning near) SVO, but it's both expensive and bleak, with guests being transported to/from the place and then being placed on special guarded floors, with all F&B from (bad and also expensive) hotel room service.