@Lizzie Definitely both, as @Mark116 said. There are so many different hosting situations, from ones where the host and guest would never need to come into contact with each other, to ones where there would be some common areas, but the host and guest would still not need to be using it at the same time, like an entrance hallway, to ones where host and guest might be sharing a bathroom and/or kitchen, that I think it's crucial for the hosts to have a place to create some self-written clarification.
I'd like to see that section near the top of the listing info. Perhaps for now, Airbnb could ditch the "10 recent guests said this home was sparkling clean" section, which most hosts, I think, couldn't care less about and wouldn't mind seeing eliminated altogether, with the COVID info.
@Cheryl136 Thanks for bringing this topic up.