I got laid off after over 10 years. As for who I saw get let go it seemed in Denver to be senior people (redlined on pay) and people who you would really want to hold onto if you intended to be an ongoing business but not if you are parting it out.
I have been threw multiple lay-offs on the planning side, never have I seen outside HR hired to fire people, very impersonal. I was not even allowed to pack my stuff, given a parking validation pass (which did not work) and not so much as a handshake from my leadership. That was not the honest and open culture Mr Holly likes to talk about so much.