It's literally a job title. One that many people have spent a lot of time and effort to create. It's weird to pretend that you've never heard of it, or the people involved in it.
As it stands in the US at least, it's a corporate marketing term referring to the whitewashing that happened after the 2020 protests to characterize the efforts corporations use to cover their asses from discrimination lawsuits as somehow pro-human. Let's not portray this as some kind of political movement rather than a liability concern.