The reality is the layoff decision has been made. There is no undo. It is better to cut cleanly as it allows people to move on faster than drawing it out.
The best thing for the most people is to help them move on to the next gig quickly.
The people u work with bosses included, are what make or break this. In my experience, people help one another. I have seen ceo’s push resumes of people let go to other execs in their network. This is outside company policy or communication for legal reasons but not everyone is dirt bag.