At the beginning of the pandemic when we were all on "Stay-at-home" orders, keeping in touch with my boss was pretty difficult. He is so used to just having me outside of his door that he has never felt the need to schedule regular check-ins with me. I think at the beginning of the pandemic, it was almost 2 weeks before we had a long conversation that was not a text conversation. I just tried my best to copy him on work I was doing, not everything of course, but anything I did on a larger college level. But I think the thing that helped me the most was hosting regular meetings with staff, since we were the ones doing most of the work. I would definately let your boss know that you feel like you need a regular check-in scheduled and do it over Webex, Zoom, Teams...what ever you use.