Depends on the job role, don’t make an absolute statement.
Heads-down coders flourish working from home.
Less conversations, no commute time, coffee at arm’s reach...
and getting to work straight through till 11pm finishing that new feature or fixing bugs.
Youre right its not black and white ...but without guard rails , working from home is fraught with temptation to take ones eyes off the prize so to speak. Its human nature ,no one is perfect....and not everyone has a manipulative agenda.... but Im sure the vast majority of work at home people fall into the time theft traps regularly imho.