I think it is certainly possible that there is an alternative office building at an undisclosed location anyway. Thing about continuity of government and security reasons. If I had to guess I think Biden spends as minimal time at the White House as possible due to COGCON2 you give the illusion to the enemy that you are setup at the White House. I think Biden is acting president but Trump is having a dirty little laugh having Biden doing his stuff at the off-shoot location thinking its for his own safety but Trump is preparing the takedown and has Biden doing all this remotely for the countries own safety.
I think it is certainly possible that there is an alternative office building at an undisclosed location anyway. Thing about continuity of government and security reasons. If I had to guess I think Biden spends as minimal time at the White House as possible due to COGCON2 you give the illusion to the enemy that you are setup at the White House. I think Biden is acting president but Trump is having a dirty little laugh having Biden doing his stuff at the off-shoot location thinking its for his own safety but Trump is preparing the takedown and has Biden doing all this remotely for the countries own safety.