Hm, but Twitter started with the censorship. It was published under Twitter files - that they actively banned anyone who didn't supported their worldview and it as on order from the Government.
It's documented in Twitter Files (how it internally worked) and also recently Mark Zuckerberg admitted the same type of censorship.
In what sense? The Google and other companies are censoring extensively. Maybe it started already in 2016 but now there is tons of evidence and it's properly documented. So the discussion is appropriate.