I think you’re being mean spirited and cynical ...
Every one of my emails to colleagues at other organisations who I haven’t heard from
in a while begins “I hope this email finds you and your loved ones safe and well” and ends with “keep safe” “keep well” or “I hope you’re keeping safely”
I mean it, every single time. These are people whose lives are precious (as anyone’s is), and who even if I don’t like particularly, or we aren’t bosom buddies under usual circumstances, of course I care about if they live or die, and that they’re safe - yes in a professional context, but I mean every word.
The world is dangerous and uncertain and scary just now. It’s not a buzz phrase, it’s a shared sense of humanity and social togetherness, manifesting as a phrase easily understood and usable by all.
Hope you and your family keep safe and well too, OP, and I mean that too!