Here's the tip of the iceberg. There are so many examples I can't go into them all without writing another blog.

https://www.theatlantic.com/international/archive/2015/02/government-censorship-21st-century-internet/385528/

https://www.breitbart.com/tech/2021/05/10/5-of-big-techs-most-serious-acts-of-censorship/

https://amnestymedia.org/social-media-censorship-is-here-and-its-getting-worse/

https://humanevents.com/2022/10/17/government-msm-and-big-tech-continue-scientific-censorship-as-some-vaccine-concerns-are-vindica

https://www.newsweek.com/big-tech-censorship-covid-information-leads-vaccine-hesitancy-opinion-1644051

https://pen.org/report/banned-usa-growing-movement-to-censor-books-in-schools/

https://www.nytimes.com/2022/03/18/opinion/cancel-culture-free-speech-poll.html