Honestly, from what I’ve seen I think they are purposefully targeting employees who have been there since original Merck days, that have more extensive benefits and time off. And likely higher salaries. Unlike prior years, they aren’t looking to retain high performers. They’re looking at $$$ only.
Mid level management more at risk.
At this point I don’t even know if it’s better to be laid off and get the benefits, or wait and suffer through the added work and chaos, just to potentially be part of a future round where less might be available.