If people are working remotely in their offices, then they should just work remotely from home. Why go into work and risk transportation issues, etc. if they are only going to work to continue to work remotely from their offices?
I need to go in to get some files from my office in a few weeks, and we are staggering this process. Because we need to swipe our card to get into the building,
we can control the times that people go in to their offices, programming the card access. I still plan to wear a mask when I go in, even if no one else is there, due to an older building and a concern I have about the virus staying in the air for a few hours if others have been in the building.