Unsure what the GP was referring to, but the article suggests that the pressure comes from activists spamming work feeds:

> “What we’ve heard from our employees is that they want the option to join debates on social and political issues, rather than see them unexpectedly in their work feed.” [said Facebook spokesman Joe Osborne]

Others have organized to skip work in an act of defiance, affecting colleagues who are not engaged in their political cause:

> a group of employees staged a virtual walkout in early June to protest Facebook’s decision to leave up a post from President Trump about social unrest

Not exactly a "gun to your head" type of forced, but nonetheless these are actions designed to foment a political clash with other employees to engage with certain political causes when they may not want to concern themselves with that at all. What makes this particularly problematic in the workplace is that many employees rely on work feeds and teamwork to earn a livelihood for themselves and their families, so they cannot realistically avoid it.

It is kinda funny to me that FB internally has realized that their feed algorithm is awful, but has enough cognitive dissonance built up to not associate that with the public non-work FB as well.