So I care very much about whether they get those jobs done well. But I couldn't care less how much time they spend with their backside in a chair or how many messages they sent last week or whether they took a 1h30 lunch break yesterday because they went out shopping for a birthday present for their kid.
I default to trusting people working for us to be honest and do their job to an acceptable standard. I'm only interested in intervening if that isn't happening. In that case the kind of metrics under discussion here aren't going to help me figure out the real problem and how we can fix it. They aren't even likely to be worth much if as a last resort we do have to lose someone who can't get the job done properly and later we have to defend that decision in some kind of dispute proceeding.
This isn't to say we can't give feedback and provide training to help anyone working for us to perform better. But I don't see what relevance these kinds of metrics have to that either. I've always found talking with people openly about how things are going to be far more effective. YMMV.