@Linda476
I've had guests who barely left the house, including before COVID, so no, I don't think what you are describing is that unusual at all, especially at the time that you wrote your post.
Sure, it is annoying, especially if you work from home, which I do, but since the pandemic, it's just something I've had to get used to. I currently have a long term guest who is here to study, but barely has any classes or college work, which is not her fault. Rather it seems the university is ripping off the students. She doesn't have friends or relatives here and was unable to return home for Easter break because of COVID (flights to her country had entirely stopped).
At first, it drove me a bit crazy that she was here all the time, and I kept asking questions to try to figure out if she was every going to go out and do stuff (other than food shopping). In the end, I just had to accept that, due to a lack of classes, she was working on other things, e.g. an online internship and her writing. Her room is large and well furnished, the kitchen large and well equipped, the living room also very large and nice. So, why would she go elsewhere to study/work?
No, it's not what I expected when she booked, but it's probably not what she expected either. Perhaps I wouldn't have accepted her if I had known she would hardly leave the house. But, unless it's specifically written in the house rules that guests need to be out of the place during the day, it's not reasonable to expect it. The guest had paid for the room and is entitled to use it for the duration of their stay. It's perfectly reasonable for them to assume that that's okay.