Citizen Browser project's Split Screen tool shows Facebook's different News Feeds for Trump and Biden voters, based on data from 2,500+ users across the US (The Markup) , TechMEME

The Markup:
Citizen Browser project's Split Screen tool shows Facebook's different News Feeds for Trump and Biden voters, based on data from 2,500+ users across the US  —  Facebook's recommendation algorithm shows different news, groups, and hashtags to different users.  But who sees what?