Both platforms bans anyone mentioning the supposed "whistleblower" (whom actually only had newspaper articles as 'evidence'), bans anyone mentioning Bidens kid, bans anyone mentioning the death of Clintons ex-staffers, Wikileaks content related to Dems is blacklisted, and they remove videos of Bidens gaffes for being "manipulative" when it's just clips from livestreams.
While no action is taken if you post conspiracies about Reps, fabricated videos of Trump (for humour or propaganda), discredited 'leaks' such as the infamous dossier, that ICE is running concentration-camps and engaging in genocide, or pictures of you vandalising Trump-supporters property.
EDIT: Even on HN, a site that usually is for free speech and discussing alternative theories, the posts about bias in tech are near instantly flagged and users praising media companies for removing "bad information" while people not following political narratives get downvoted; seems to indicate larger issues.