Case in point: the idea that conservatives are somehow having their speech suppressed. This is patently false. Twitter has become 4chan. Any number of conservatives topics like anti-vaxxers, Brexit, anti-immigrant propaganda and so thrive on social media, including and especially Facebook.
Now you can argue that this isn't intentional. It's simply a result of these platforms responding to and promoting "engagement bait". There might be some truth to that but at a certain point, particularly if you're the CEO of Meta, you can't play dumb. You should know what your platform is promoting and what benefits you.
What you're seeing here is Zuckerberg is increasingly becoming aligned with the billionaire class and, by extension, the political right (eg [1]). This is the arc that leads to becoming Peter Thiel.
No one, and I mean no one with the possible exception of Noam Chomsky, is a free speech absolutist. Elon, for example, has banned people who have simply hurt his feelings (many times).
And while Zuck is sucking up Republicans in Congress, see how far you get on any of these platforms if you use words like "Gaza", "Israel", "Sde Temain" or "Palestine".
All of these big tech companies have been very successful in pushing the idea that it's "the algorithm" that upranks or downranks content, like there's no human involved. This is propaganda. Humans decide what's in the algorithm and they make those decisions based on what they want it to do.
[1]: https://www.nbcnews.com/tech/tech-news/mark-zuckerberg-prais...