According to my brother, it's easy to find them. But just working from home supports the mindset that they are "out of sight and out of mind" of the supervisors. As such, a lot of employees engage in idle time working from home when they ordinarily wouldn't if they were in an office environment with a supervisor physically nearby. As such, the supervisors are spending a lot more time micro-managing the workflow of individual employees, instead of managing the overall output of the departments.
I am retired—but before I retired there were some departments that were all in the office and others that were all work at home.
My company probably cheated—but they had the smartest and best managers managing the work at home employees—and productivity was great.
That is probably why I view it as a supervisory/management issue.
Managers need to get smarter and then they can handle it.