Earlier quoted context omitted.
If this was really the case, WFH would be a no-brainer and would not meet so much resistance from management. Most companies clearly care more about the fact that they can account for the time you’re in office, as opposed to how productive you actually are.
I switched my tech company to full WFH. I also implemented detailed surveillance on all employees, which I don’t disclose. It shows me keyboard/mouse activity levels and window update rates. It’s very interesting information, I have much better insight how and when people work, which are very different from each other. I also have other productivity measures and now I can really understand when someone is not working…
Back in the 80's, many computer games had a "boss" key which would pause the game and throw up a screen that looked like a spreadsheet.