Try browsing Chinese social media (WeChat, Douyin, Weibo, etc). The internet is ripe with non-anonymous criticism of the gov't

People often point to the take down of Winnie the Pooh memes as censorship but I don't think people realize there's a long history of racist groups using Pooh as a slur about Asian people and Tigger about black people. The meme exploded in popularity from a picture of Obama and Xi being compared to Tigger and Pooh.

You can have whatever opinion you want about taking down racist content but I don't it's any different from Western platforms. But spending any time on Chinese social media will quickly dispel the idea of harsh consequences for speech (an especially silly idea coming from members of the nation that contains 25% of the world's prisoners)