I'm taking the viewpoint that unless I am in a very large and well-ventilated room with only person, I'll be wearing a mask for any in-person meetings, and I will be wearing one in the shared office and expecting it to be well ventilated. I'm prepared to go back to the office again, and actually quite looking forward to a bit more contact, but I'm not willing to risk catching Covid again when I'm still not over the first time! (Nor fresher's flu, which is realistically probably the bigger risk.)