I wish that NBC - where I watched - kept the maps longer, for as long as the name of the nation was displayed but, mostly, that the maps were clearer. It was a spot of pale yellow on a background of pale green - at least on my TV and it disappeared within a few second.
I think it was toward the end that we saw the Refugees group, but it was earlier that another group marched under the Olympic flag. It was not clear who they were. An NBC commentator said that if one of them would win, the "anthem" and the flag would be of the Olympics.