I'm watching TV as we speak when I should be working. Pretty sure I will do 0 hours today. It has nothing to do with "noticing" anything. I simply can't work from home while I'm very productive in the office.
If you're so disinterested in your work, you'll find a million ways to goof off in the office also. Just because you're there doesn't mean you'll be productive.
I've been WFH/cafés for the last six years. I have occasional off days but I'm way more productive at home over the long run, than at the office. At the office I often find that I seem to have had a full day but can't actually identify concrete outcomes. It was just a long series of meetings, chitchats, catch-ups, interruptions, and so on.