In my case, when I was in college, there would be days on end where I wouldn't leave my dorm. I'd hang around in pjs doing pretty much the same thing all day long: get in front of the computer, do whatever, eat in front of the computer, continue doing whatever, get the laptop in bed, fall asleep. Repeat the next day. After a while I really had the impression of "doing nothing" or of "always doing the same thing".

Nowadays, when I work from home, I get up, make the bed, put my workout clothes on, do my workout routine, take a shower, eat a protein shake, get dressed "for work" (ie put on a clean tshirt so as to be presentable on a video call), get in front of the computer, start up Teams and get to work. I try to take a break every hour or so to move around a bit (do some push-ups / pull-ups), drink a glass of water, look out the window, then get back to work. Around 6 PM, when the office hours are done, I finish up whatever I'm doing then quit Teams, quit the mail program, and I'm done for the day.

Now YMMV, but I find that the days when I go straight to work and just do the work part, sometimes still in my pjs as in college, I really get the feeling that I've accomplished less. I find that for me, breaking up the day with some activities helps to not perceive it as being monotonous, just doing one thing all day long. At least for me it's important for whatever breaks I take to not just be in front of the computer, like browsing hn or whatever. That's why I like moving around a bit and looking out the window.

This is something that I'm not as likely to do in the office. There are more distractions, even though I'm not in a proper open space, so it takes me more time to "get in the zone" and I'm also less inclined to break it whenever I'm in it cause I never now when I'll be able to get back. Also, I enjoy calm during my breaks, so people on the phone or talking to each other and other random noises are more likely than not to stop me from walking around outside the office.