Attempting to reconcile that with HRW's article: on the one hand I think HRW might be unrealistic about what FB should be expected to tolerate (for instance, they criticize FB for taking down posts praising designated terrorist organizations); on the other, Meta's approach to content moderation - which combines automated systems with overworked and underpaid humans exposed non-stop to awful content - is notoriously fickle and subject to abuse (including, perhaps, by state actors).
Beyond Israel/Palestine, I regularly encounter content on Facebook that the Powers That Be would censor if "the pro-Western censorship regime on FB [were] extremely strong". I think I subscribe to only one political (left-leaning) group (along with a bunch of local and meme pages), but nevertheless my feed is full of tankies demanding we bring back the guillotine and install full communism.
Naturally there is no overt censorship on FB/Meta, but in the wake of October 7th there was a clear difference in what kinds of content was being lifted by the algorithms on both platforms. I think, save for Bella Hadid, you would rarely see "organic" pro-palestine content with millions of views on Instagram, while it was less censored on TikTok.
Human Rights Watch even did a study on it: https://www.hrw.org/report/2023/12/21/metas-broken-promises/...
A user should be able to use another person's hosted Mastodon instance or Bluesky AppView/Relay.
Posting pro-Palestinian content on Facebook will get your account terminated for "supporting terrorism". The pro-western censorship regime on FB is extremely strong. US lawmakers specifically cited the amount of pro-Palestinian content on TikTok as why they were banning the app.
Sources:
https://theintercept.com/2025/01/09/tiktok-ban-israel-palest...
https://www.hrw.org/report/2023/12/21/metas-broken-promises/...