Yeah. Just to add, it is ostensibly meant to be a way of going “hey, it looks like your performance is suffering. Maybe this is due to workload, stress, etc. problems. Let’s work together to get you back on track”. But of course it is really a sinister way to invent reasons why someone needs to be fired. Because if you get fired after PIP then HR can say “well we tried our best to help you succeed and you just couldn’t do it”
They are a way of gaslighting and victim blaming an employee while firing them.