I believe Elon was saying 90 percent of government employees are not showing up at offices weekly now. Is it possible, that many of these employees do not even exist, and their paycheck is all just going to enrich a handful of insiders?
Thus, demanding that everyone shows up to work would be a means of calling them out on their fraud.
In my country, during the plandemic, the Social Security Department was issuing a weekly $175 to those that had lost their jobs! Mickey Mouse showed up on their official lists of recipients!