For the first year and a half of my WFH journey, I was alone the whole day. At the beginning, I felt awkward. If you feel like that too, it’s completely normal. I stopped noticing that I’m alone only when I was immersed in work. As you enter “the zone” you can forget about the whole world. Working from home can be a very productive time. There are few interruptions. You can just go with the flow.
Source: Working from Home: An Honest Look at the Remote Work Lifestyle, an article by Michal Matczuk.