I used to commute to a city from which I live about an hour by train away. I worked from home a lot, but would travel there a lot too and every day I did, I easily walked over 10km each day, since I walked to and from the train station on both sides and in the city I'd walk everywhere too if I was going anywhere for lunch or after work, so it added up very quickly. With covid, I haven't been since early this year and I definitely miss all the walking. I try to go for walks here, but when I went to work there, it was an unconscious thing that I just did without thinking, while here its a decision I have to consciously make, which makes it a lot harder.